Multiple Choice
How many valence electrons are in a neutral chlorine atom (Cl)?
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9. Electrons in Atoms and the Periodic Table
Valence Electrons of Elements (Simplified)
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In a simplified model of chemical bonding, what most directly determines an atom's reactivity?
A
The total number of electron shells (energy levels) the atom has
B
The atomic mass of the element
C
The number of electrons in the atom's outermost (valence) shell
D
The number of neutrons in the nucleus
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