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Title: Atom

Essay Details

Subject: Humanities
Author: Michael S
Date: August 30, 2012
Level: University
Grade: A
Length: 35 / 10270
No of views: 0
Essay rating: good 0, average 0, bad 0 (total score: 0)

Essay text:

The black bar is one angstrom, equal to 10?10 m or 100,000 fm. Classification Smallest recognized division of a chemical element Properties Mass range: 1.67 ? 10?27 to 4.52 ? 10?25 kg Electric charge: zero (neutral), or ion charge Diameter range: 62 pm (He) to 520 pm (Cs) (data page) Components: Electrons and a compact nucleus of protons and neutrons The atom is a basic unit of matter consisting of a dense, central nucleus surrounded by a cloud of negatively charged electrons...

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The atomic nucleus contains a mix of positively charged protons and electrically neutral neutrons (except in the case of Hydrogen-1, which is the only stable isotope with zero neutrons). The electrons of an atom are bound to the nucleus by the electromagnetic force. Likewise, a group of atoms can remain bound to each other, forming a molecule...

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