Multiple Choice
Which electron configuration is correct for a sodium ion, ?
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4. Atoms and Elements
Ions (Simplified)
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What is the main difference between an ion and a neutral atom?
A
An ion is formed by changing the number of protons, while a neutral atom is formed by changing the number of electrons.
B
An ion has a nucleus, while a neutral atom does not have a nucleus.
C
An ion has a net electric charge because it has gained or lost electrons, while a neutral atom has equal numbers of protons and electrons.
D
An ion always has more protons than electrons, while a neutral atom always has more electrons than protons.
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