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Which element has exactly five electrons in the highest principal energy level (the outer shell)? a. B b. Ba c. P d. Mn
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Which element has exactly five electrons in the highest principal energy level (the outer shell)?

a. B 
b. Ba
c. P 
d. Mn

User Arunan
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1 Answer

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Boron (B) has 3 electrons in the outer shell.
Barium (Ba) has 2 electrons.
Phosphorus (P) has 5 electrons.
Manganese (Mn) has 2 electrons.

The answer is C) P (phosphorus).
User BlessedKey
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