Multiple Choice
How many valence electrons are in a neutral lithium atom (Li)?
1
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9. Electrons in Atoms and the Periodic Table
Valence Electrons of Elements (Simplified)
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In the simplified valence-electron model, what most directly determines the chemical reactivity of an atom?
A
The number of valence electrons in the outermost energy level
B
The total number of electrons in the atom
C
The atomic mass of the element
D
The number of neutrons in the nucleus
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