It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities.Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities.Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. The price for 100 grams of lutetium is around $10,000. Condition: New. Helps to understand reactivity of elements (especially metals, which lose electrons).For example, sodium requires only 496 kJ/mol or 5.14 eV/atom to ionize it. Oganesson (Og), a transuranium element that occupies position 118 in the periodic table and is one of the noble gases.Oganesson is a synthetic element, and in 1999 scientists at Lawrence Berkeley National Laboratory in Berkeley, California, announced the production of atoms of oganesson as a result of the bombardment of lead-208 with atoms of krypton-86. Under standard conditions, it is the lightest metal and the lightest solid element. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis.Significant concentrations of boron occur on the Earth in compounds known as the borate minerals. Sold at $270 per gram, scandium’s global trade annually of 10 tonnes (about 10 million grams) amount to $2.7 billion worth of money. Nickel belongs to the transition metals and is hard and ductile.Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. It is a noble metal and a member of the platinum group.Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). The various species of atoms whose nuclei contain particular numbers of protons and neutrons are called.Properties of atomic nuclei (atomic mass,Atomic nuclei consist of protons and neutrons, which attract each other through,The atomic mass is the mass of an atom. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. The,As with boiling points, the melting point of a solid is dependent on the strength of those attractive forces. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry.Main purpose of this project is to help the public learn some interesting and important information about chemical elements,Our Website follows all legal requirements to protect your privacy. The billion per gram is completely theoretical, since one gram of francium has never even been observed. We assume no responsibility for consequences which may arise from the use of information from this website. ; On 28 November 2016, the International Union of Pure and Applied Chemistry (IUPAC) approved the names and symbols for four newest elements: nihonium (Nh), moscovium (Mc), tennessine (Ts), and oganesson (Og). Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive.Calcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. This is our latest animated slideshow about the 118th Chemical element in the Periodic Table Of 2017. Knowledge of the,For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite.Germanium is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. On the other hand, ice (solid H.Covalent bonds often result in the formation of small collections of better-connected atoms called molecules, which in solids and liquids are bound to other molecules by forces that are often much weaker than the covalent bonds that hold the molecules internally together. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps.Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral).Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids.Uranium is a silvery-white metal in the actinide series of the periodic table. Quantity: Product Description: Assorted elements of the periodic table are represented in these smart brass and enamel pins. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. Cerium is the second element in the lanthanide series. Europium is one of the least abundant elements in the universe. The forces of chemical bonding causes this repetition. Sodium chloride melts at  801°C. Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements.Bismuth is a brittle metal with a silvery white color when freshly produced, but surface oxidation can give it a pink tinge. Lead is soft and malleable, and has a relatively low melting point. Oganesson is a radioactive, artificially produced element about which little is known.

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