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The top documents tagged [number of protonsex]
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number of protonsex
Bohr’s Atom electrons in orbits nucleus What is an atom? Atom: the smallest unit of matter that retains the identity of the substance.
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Atoms and the Periodic Table The Atom Ch. 4. Democritus (400 BC) Greek philosopher. All things are composed of tiny, indivisible particles: called: Atomos.
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BELL-RINGER QUESTION 1. Look at the periodic table of elements…. How are the elements in the periodic table like the alphabet of letters?
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