Answer:
A period 3 element is one of the chemical elements in the third row (or period) of the periodic ... The third period contains eight elements: sodium, magnesium, aluminium, ... This makes all eight elements analogs of the period 2 elements in the same ... Phosphorus (symbol P) is a multivalent nonmetal of the nitrogen group,
Explanation:
nfs if this is right but its worth a shot!
