how-would-you-determine-the-number-of-valence-electrons-in-phosphorus-and-what-i

Question

How would you determine the number of valence electrons in phosphorus, and what is its position on the periodic table?

Accepted Answer

Phosphorus has 5 valence electrons and is in group 5A.

Answer

Phosphorus has 3 valence electrons and is in group 3A.

Answer

Phosphorus has 7 valence electrons and is in group 7A.

Answer

Phosphorus has 1 valence electron and is in group 1A.