please help me with one me minutes

Biology
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what is atom

Nov 28th, 2014

An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud. The electrons carry a negative charge and the protons carry a positive charge. In a normal (neutral) atom the number of protons and the number of electrons are equal. Often, but not always, the number of neutrons is the same, too.

Nov 28th, 2014

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Nov 28th, 2014
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Nov 28th, 2014
Dec 5th, 2016
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