The valence electron of caesium is in the shell with n equal to 6. Which n values can its electrons have?
AOnly the value 6
BOnly 1 and 6
CAny from 1 to 6
DAny from 0 to 5
Answer & Solution
Correct answer: C. Any from 1 to 6
The principal quantum number runs from 1 up to the shell of the outermost electron, so caesium electrons can have n from 1 to 6.
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