Identify the element belonging to third period and 17th group of the periodic table.

Options

A. Chlorine
B. Bromine
C. Sulphur
D. Silicon

Answer

A

Explanation

This is because the element belongs to the 17th category. As a result, it is a halogen. From the second phase forward, halogens are used. Period 3 has Chlorine, as determined by counting the periods and comparing them to the periods of halogens. Chlorine is the element. It has 7 electrons in its valence shell, therefore it will receive 1 electron, giving it a valency of 1.