Question

Chorine in the periodic table is surrounded by the elements with atomic number 9, 16, 18 and 35.

Which of these have physical and chemical properties resembling chlorine.

Answer 1

An Element with atomic number 9 and 35

Answer 2

Fluorine and chlorine have atomic numbers 9 and 35, respectively as both are halogens. They belong to the same group 17 and have seven electrons in their valence shell. The valency is 1. Both elements are non-metallic.