Question

how many valence electrons does each atom of arsenic (as) have? arsenic is element 33 in period 4 and family 15 (5a or the nitrogen family). (1 point) 4 33 5 15

Explanation:

Step1: Recall valence - electron rule for main - group elements

Valence electrons for main - group elements can be determined by their group number in the periodic table.

Step2: Identify the group of arsenic

Arsenic (As) is in group 15 (or 5A) of the periodic table. For main - group elements, the number of valence electrons is equal to the group number (for groups 1 - 2 and 13 - 18).

Answer:

5