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The periodic table is a way of displaying the chemical elements so that the electronic properties of each element resemble all of those above and below it. Look at the leftmost column below. Lithium, sodium, potassium and the rest are all low-melting metals with good electrical conductivity...
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A comprehensive and interactive wiki page about the periodic table of elements, with information on their properties, history, and applications. Learn about the 118 elements, their names, symbols, images, and more.
Periodic Table Wiki is a collaborative online encyclopedia for elements and their properties. Browse the periodic table by element name, symbol, atomic number, or category, and learn about their history, chemistry, and uses.
Elements Wiki is a community website where anyone can edit articles about the elements on the periodic table, their isotopes and more. Learn about the history, properties, uses and discoveries of the elements, from hydrogen to ununseptium, and contribute your knowledge.
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Helium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the...
