Question #5abb0

1 Answer
Jul 26, 2017

Answer:

There are four possibilities silicon, phosphorus Chlorine and Argon.

Explanation:

Oxygen is in the second period while Sulfur is in the third period.

There are five non metal elements in the third period numbers 14-18
Silicon which is a metalloid Phosphorus , Sulfur, Chlorine and Argon.

The question might be what are the nonmetals in family VA
The three nonmetals in the same family are Oxygen , Sulfur, and Selenium Se # 34.

The question may be confusing families or groups with periods.