A chemical element or element is a species of atoms having the same number of
protons in their atomic nuclei There are 118 elements that have been identified, ...
Provides information on the 109 named elements plus elements 110 - 112.
alphabetical list of chemical elements periodic table chart.
Award winning periodic table, with user-friendly element data and facts. Cool,
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Learn what a chemical element is and get examples of elements.
Periodic Table of Elements. Includes .... For elements with no stable isotopes, the
mass number of the isotope with the longest half-life is in parentheses. Periodic ...
Element, Sym- bol, Atomic no. Atomic wt. Specific gravity, Melting point °C,
Boiling point °C, No. of isotopes <sup>1</sup>, Discoverer, Year. Actinium, Ac, 89, 227 <sup>2</sup>,
10.07 <sup>3</sup> ...
Explore the chemical elements through this periodic table.
Mar 29, 2016 ... Any substance that cannot be decomposed into simpler substances by ordinary
chemical processes. Elements are the fundamental materials of ...
Chemical Elements and their Symbols. Tools. Copy this to my account · E-mail to
a friend · Find other activities · Start over · Help. Learn the elements and their ...