www.tutoreye.com
It is the very fist element in the periodic table. Hydrogen is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Also, used in rocket fuel. It has the valence of 1.
It is the very fist element in the periodic table. Hydrogen is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Also, used in rocket fuel. It has the valence of 1.
Lithium is the element of periodic table with valence of 1. It has derived its word from greek term "Lithos" which means rocks. Under standard conditons, it is the lightest element. It is also used in medications.
It is the highly reactive metal. When you study science online, you will find it symobolized as Na in periodic table. It is a very essential element for healthy functioning of the body.
Potassium is reactive to atmospheric oxygen. It is the soft metal that could easily be cut with light pressure through knife. It is represented as "K" in periodic table.
If you study chemistry online or offline you will realise that Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity.
It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C, which makes it one of only five elements of periodic table (metals) that are liquid at or near room temperature.
Prior to its discovery, Fr was referred to as eka-caesium. If you study chemistry online or offline, you will know that It is extremely radioactive. Francium-223, most stable isotope has a half-life of only 22 minutes
Rare element in the universe. Beryllium usually occurs as product of spallation of larger atomic nuclei that have collided with cosmic rays. Within the cores of stars, is depleted as it is fused into heavier elements.
Magnesium is the ninth most abundant element in the periodic table found in the universe. It is produced in large, aging stars from the sequential addition of three helium nuclei to a carbon nucleus.
Strontium is a divalent silvery metal with a pale yellow tint whose properties are mostly similar to those of its group neighbors in periodic table. It occurs naturally in minerals celestine and strontianite.
Barium has a medium-specific weight and good electrical conductivity. Ultrapure barium is very difficult to prepare, and therefore many properties of barium have not been accurately measured yet.
Pure radium is a volatile silvery-white metal. If you study chemistry, you will learn that tint rapidly vanishes on exposure to air, yielding a black layer of radium nitride (Ra3N2).
Scandium is present in most of the deposits of rare-earth and uranium compounds It is extracted from ores in only a few mines worldwide. Scandium turnings ignite in air with a brilliant flame to form scandium oxide.
Yttrium is almost always found in combination with lanthanide elements in rare-earth minerals. It is never found in nature as a free element. 89Y is the only stable isotope that is found in the Earth's crust
It is a silvery white metal, which resists corrosion in dry air, but not in moist air. It is the last element of periodic table in lanthanide series. It is sometimes considered first element of the 6th-period transition metals
A radioactive metal, lawrencium is the final member of the actinide series. Like all elements with atomic number over 100,it can only be produced in particle accelerators by bombarding lighter elements with charged particles
It is one of the strongest metals in the periodic table with low density that is quite ductile lustrous, and metallic-white in color. The relatively high melting point makes it useful as a refractory metal
Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Zirconium forms a variety of inorganic and organometallic compounds.
It is not readily attacked by acids but can be oxidized with halogens. Like its sister metal in periodic table zirconium, it can ignite spontaneously in air. The metal is resistant to concentrated alkalis.
The chemical properties of rutherfordium are partly characterized. They compare well with the other group 4 elements. Calculations had indicated that the element might show different properties due to relativistic effects.
Vanadium occurs naturally in about 65 minerals and in fossil fuel deposits. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, making it rare lement of periodic table
Niobium, also known as columbium. Pure niobium has a hardness similar to that of pure titanium. Niobium oxidizes in the earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel.
Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group in periodic table, which are widely used as minor components in alloys.
Dubnium does not occur naturally on Earth. It is produced artificially. It should share most properties, such as its valence electron configuration and having dominant +5 oxidation state, with the other group 5 elements of periodic table.
Chromium is the main additive in stainless steel, to which it adds anti-corrosive properties. It is also highly valued as metal that is able to be highly polished while resisting tarnishing. Fourth transition metal found on periodic table
Molybdenum does not occur naturally as a free metal on Earth.Found only in various oxidation states in minerals. Various cofactor enzymes are vital to the organisms, and it is an essential element for life in all higher eukaryote organisms
Tungsten is rare metal found naturally on Earth almost exclusively combined with other elements rather than alone.It is only metal from third transition series that is known to occur in biomolecules found in few species of bacteria&archaea
Studying chemistry, you learn seaborgium behaves as the heavier homologue to tungsten in group 6. The chemical properties of seaborgium are characterized only partly, but they compare well with the chemistry of the other group 6 elements.
Lanthanum is traditionally counted among rare earth elements. The usual oxidation state is +3. It has no biological role in humans but is essential to some bacteria.Not particularly toxic to humans but does show some antimicrobial activity
Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table. It is also sometimes considered the first of the 7th-period transition metals.
Cerium is the second element in the lanthanide series. Exceptionally has a stable +4 state that does not oxidize water. It is also considered one of the rare-earth elements. Cerium has no biological role in humans and is not very toxic.
Because of its scarcity, high radioactivity and high toxicity, there are currently no uses for protactinium outside scientific research, and for this purpose, protactinium is mostly extracted from spent nuclear fuel.
Manganese is a silvery-gray metal that resembles iron. It is hard and very brittle, difficult to fuse, but easy to oxidize. common ions are paramagnetic.It tarnishes slowly in air and oxidizes like iron in water containing dissolved oxygen
With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust. Rhenium has the third-highest melting point and second-highest boiling point of any stable element
Bohrium is a synthetic chemical element. It is named after physicist Niels Bohr. As synthetic element, it can be created in laboratory. Studying chemistry experiments have confirmed that it behaves as heavier homologue to rhenium in group 7
It is too reactive to be found in native form. Develops green oxide coating when exposed to air.It always occur naturally together with other earth metals. Fourth most common rare-earth element, making up 9.1 parts/million of Earth crust
Because of its scarcity, high radioactivity and high toxicity, there are currently no uses for protactinium outside scientific research, and for this purpose, protactinium is mostly extracted from spent nuclear fuel.
By mass iron is the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. It shows characteristic chemical properties of the transition metals.
It is a rare transition metal belonging to platinum group of periodic table. Like other metals of the platinum group, ruthenium is inert to most other chemicals. It has four crystal modifications and doesnt tarnish at ambient conditions
Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.59 g/cm3. The element's abundance in the Earth's crust is among the rarest
It is not known to occur in nature and has been made only in laboratories in minuscule quantities. Studying chemistry you learn that it is highly radioactive; the most stable known isotope, 269Hs, has half-life of approximately 16 seconds.
Neodymium is present in significant quantities in the ore minerals monazite and bastnäsite. It is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use.
Uranium has highest atomic weight of primordially occurring elements. Its density is about 70% higher than that of lead. It occurs naturally in low concentrations and is commercially extracted from minerals such as uraninite
Cobalt is a ferromagnetic metal. It is a weakly reducing metal that is protected from oxidation by a passivating oxide film. At ordinary temperatures, it reacts slowly with mineral acids, and very slowly with moist, but not with dry, air.
It has only one naturally occurring isotope, 103Rh. Naturally occurring rhodium is usually found as free metal, and rarely as a chemical compound in minerals. It is one of the rarest and most valuable precious metals of periodic table
Iridium is considered to be the second-densest metal. It is the most corrosion-resistant metal in periodic table, even at temperatures as high as 2000 °C. Iridium is found in meteorites in much higher abundance than in the Earth's crust.
It is an extremely radioactive synthetic element. If you study chemistry you come to know that it is first element whose chemistry has not yet been investigated.Unambiguous determination of chemical characteristics has yet to be established
Promethium is one of only two radioactive elements that are followed in the periodic table by elements with stable forms. It belongs to the cerium group of lanthanides and is chemically very similar to the neighboring elements.
Neptunium metal is similar to uranium in terms of physical workability. Studying chemistry you learn that when exposed to air at normal temperatures, it forms a thin oxide layer. This reaction proceeds more rapidly as temperature increases
Nickel belongs to transition metals and is hard and ductile.Pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks,and in interiors of larger nickel–iron meteorites that were not exposed to oxygen
Palladium comes in the platinum group metals of periodic table. Palladium is a key component of fuel cells, which react hydrogen with oxygen to produce electricity, heat, and water.
Platinum is one of the least reactive metals. When you study chemistry you learn that it has remarkable resistance to corrosion, even at high temperatures.Therefore considered a noble metal. It occurs naturally in alluvial sands of rivers
It is an extremely radioactive synthetic element. No properties and its compounds have been measured due to its extremely limited and expensive production and fact that darmstadtium decays very quickly. Properties of metal remain unknown.
Samarium is a rare earth metal having a hardness and density similar to those of zinc.It is not found free in nature, but, like other rare earth elements, is contained in many minerals mostly used as commercial sources
Plutonium is a radioactive chemical element of the periodic table with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized.
Copper is one of the few metals in the periodic table that can occur in nature in a directly usable metallic form. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.
The metal is found in the Earth's crust in the pure, free elemental form as an alloy. Most silver compounds have significant covalent character due to the small size and high first ionization energy (730.8 kJ/mol) of silver.
Gold often occurs in free elemental (native) form, as nuggets or grains, in rocks, in veins, and in alluvial deposits. It occurs in a solid solution series with the native element silver and also naturally alloyed with copper and palladium
Roentgenium is calculated to have similar properties to its lighter homologues, it may show some differences from them. It is an extremely radioactive synthetic element that can be created in a laboratory but is not found in nature.
Europium is a ductile metal.It crystallizes in a body-centered cubic lattice. Some properties are strongly influenced by its half-filled electron shell.It has the second lowest melting point and the lowest density of all lanthanides
Americium is a relatively soft radioactive metal with silvery appearance. It is a transuranic member of actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas.
Zinc is a slightly brittle metal at room temperature and has a blue-silvery appearance when oxidation is removed. It is the first element in group 12 of the periodic table. In some respects, zinc is chemically similar to magnesium.
Cadmium occurs as a minor component in most zinc ores and is a byproduct of zinc production. It is resistant to corrosion and is used as a protective plate on other metals. As a bulk metal, cadmium is insoluble in water and is not flammable
Mercury occurs in deposits throughout the world mostly as cinnabar. Mercury is a heavy, silvery-white liquid metal. Compared to other metals, it is a poor conductor of heat, but a fair conductor of electricity.
Copernicium is the tenth and last member of the 6d series and is the heaviest group 12 element in the periodic table. Very few properties and its compounds have been measured; this is due to its extremely limited and expensive production
Gadolinium possesses unusual metallurgical properties.As little as 1% that can significantly improve workability and resistance to oxidation at high temperatures.Used sometimes for shielding in neutron radiography and in nuclear reactors.
Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide.Paramagnetic at ambient conditions, it becomes antiferromagnetic upon cooling, and other magnetic transitions are also observed
Boron is a low-abundance element in the Solar system and in the Earth's crust.While studying chemistry you learn that it is concentrated on Earth by water-solubility of its more common naturally occurring compounds, the borate minerals.
Aluminium is remarkable for its low density and its ability to resist corrosion through the phenomenon of passivation. Aluminium combines characteristics of pre- and post-transition metals of periodic table.
Elemental gallium is not found in nature, but it is easily obtained by smelting. It shares the higher-density liquid state with a short list of other materials that includes water, silicon, germanium, antimony, bismuth, and plutonium
Indium is a minor component in zinc sulfide ores and is produced as a byproduct of zinc refinement. It is most notably used in the semiconductor industry. Indium is considered a technology-critical element in periodic table
Thallium It is a gray post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. It is malleable and sectile enough to be cut with a knife at room temperature.
Nihonium is a synthetic chemical element. In the periodic table, it is a transactinide element in the p-block. Very little is known about nihonium, as it has only been made in very small amounts that decay away within seconds.
Terbium is rare earth metal that is malleable, ductile and soft enough to cut with knife.It is relatively stable in air compared to other lathanides.It exists in two crystal allotropes with transformation temperature of 1289 °C between them
Berkelium is a soft, silvery-white, radioactive actinide metal. In periodic table, it is located to right of actinide curium, to left of actinide californium and below lanthanide terbium with which it shares many similarities in properties
Carbon is the 15th most abundant element in Earth's crust, and fourth most abundant element in the universe by mass.Its unusual ability to form polymers at the temperatures enables this element to serve as common element of all known life
Silicon is unreactive because of its high chemical affinity for oxygen. Most silicon is used commercially without being separated, and often with little processing of the natural minerals. It is the basis of widely used synthetic polymers-silicones
Germanium naturally reacts and forms complexes with oxygen in nature. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature.
Tin is a soft, malleable, ductile and highly crystalline silvery-white metal. When you study chemistry, you learn that Tin resists corrosion from water, but can be attacked by acids and alkalis.
Lead is heavy metal that is denser than most common materials found in other elements of periodic table.Has highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier element
Dysprosium is never found in nature as a free element, though it is found in various minerals, such as xenotime. Studying chemistry you learn that naturally occurring, it is composed of seven isotopes, the most abundant of which is 164Dy.
Californium is one of few transuranium elements that have practical applications.Most of these applications exploit property of certain isotopes of californium to emit neutrons.It can be used in nuclear synthesis of higher mass elements
Nitrogen bonds to almost all elements in the periodic table except first three noble gases, helium, neon, and argon. It is common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.
"Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the crust about one gram per kilogram
It is the very fist element in the periodic table. Hydrogen is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Also, used in rocket fuel. It has the valence of 1.
A lustrous gray metalloid, it is found in nature mainly as sulfide mineral stibnite. Antimony compounds have been known since ancient times often known by Arabic name, kohl. Metallic antimony was also known but identified as lead earlier
Elemental bismuth may occur naturally, although its sulfide and oxide form important commercial ores.Free element is 86% as dense as lead.It is the most naturally diamagnetic element. It has one of the lowest values of thermal conductivity
Moscovium is an extremely radioactive element in periodic table.Most stable isotope moscovium-290, has a half-life of only 0.65 seconds No properties and its compounds have been measured due to its extremely limited and expensive production
"Elemental holmium is a relatively soft and malleable silvery-white metal. It is too reactive to be found uncombined in nature but when isolated, is relatively stable in dry air at room temperature. However, it reacts with water and corrodes
Einsteinium is a soft, silvery, paramagnetic metal. Einsteinium is the element with the highest atomic number which has been observed in macroscopic quantities in its pure form, and this was the common short-lived isotope einsteinium-253
Oxygen is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
Sulfur, usually as sulfide, is present in many types of meteorites. It is fifth most common element by mass in Earth. It can be found near hot springs and volcanic regions in many parts of world, especially along Pacific Ring of Fire
It is a nonmetal with properties that are intermediate between elements above and below in periodic table, sulfur and tellurium. Has similarities to arsenic. It rarely occurs in its elemental state or as pure ore compounds in Earth's crust
Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens. It is occasionally found in native form. It is more common in Universe than on Earth. It is rare due to loss as gas during nebular formation of Earth
A rare and highly radioactive metal with no stable isotopes. Studying chemistry you learn that due to the short half-life of all its isotopes, its natural occurrence is limited to tiny traces of the fleeting polonium-210 in uranium ores.
Livermorium is a synthetic chemical element. It is an extremely radioactive element in periodic table that has only been created in the laboratory and has not been observed in nature due to its extremely limited and expensive production.
Fermium is synthetic element.It is an actinide and heaviest element that can be formed by neutron bombardment of lighter elements.The last element that can be prepared in macroscopic quantities, although pure metal has not yet been prepared
Fluorine is the lightest halogen and exists as highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive.It reacts with all other elements, except for argon, neon, and helium
Chlorine is an extremely reactive element and a strong oxidizing agent: among the elements of periodic table, it has highest electron affinity and the third-highest electronegativity on the Pauling scale, behind only oxygen and fluorine.
Elemental bromine is very reactive and thus does not occur free in nature colorless soluble crystalline mineral halide salts. While it is rather rare in Earth's crust, the high solubility of its ion has caused its accumulation in oceans
Iodine is fourth halogen and heaviest stable member of its group. About half of all produced iodine goes into various organoiodine compounds, another remains as pure element,used to form potassium iodide and other inorganic iodine compounds
Iodine is fourth halogen and heaviest stable member of its group. About half of all produced iodine goes into various organoiodine compounds, another remains as pure element,used to form potassium iodide and other inorganic iodine compounds
Thulium is the second-least abundant of the lanthanides, after radioactively unstable promethium which is only found in trace quantities on Earth. It is an easily workable metal. It is fairly soft and slowly tarnishes in air
A metallic radioactive transuranic element in the actinide series of periodic table, it is the first element by atomic number that currently cannot be produced in macroscopic quantities through neutron bombardment of lighter elements.
Helium is colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in noble gas group in periodic table.Its boiling point is lowest among all elements.It is second lightest and most abundant element in observable universe
Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Studying chemistry you learn that neon has the narrowest liquid range of any element: from 24.55 K to 27.05 K
Argon is produced industrially by the fractional distillation of liquid air. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive
Krypton, like the other noble gases, is used in lighting and photography. Krypton light has many spectral lines, and krypton plasma is useful in bright, high-powered gas lasers, each of which resonates and amplifies a single spectral line.
Naturally occurring xenon consists of seven stable isotopes and two long-lived radioactive isotopes. More than 40 unstable isotopes undergo radioactive decay, and isotope ratios are important tool for studying early history of Solar System
Radon itself is immediate decay product of radium. It is one of the rarest elements since it decays away so quickly. Unlike all other intermediate elements in aforementioned decay chains, radon could be inhaled but is considered dangerous
Oganesson has the highest atomic number and the highest atomic mass of all known elements. The radioactive atom is very unstable this allowed very little experimental characterization of its properties.
Tennessine is synthetic chemical element. No properties or its compounds have been measured due to its extremely limited and expensive production and fact that it decays very quickly. Properties remain unknown,only predictions are available
Ytterbium is soft, malleable and ductile element that displays bright silvery luster when pure. It is rare earth element, and it is readily dissolved by strong mineral acids. It reacts slowly with cold water and it oxidizes slowly in air
Post a Comment comments powered by Disqus