Question

Elements that exist in pair are called _______ element.

Answer 1

Answer:

All tag come in pairs except for Void elements, which at the time of this writing include: area, base, br, col, embed, hr, img, input, keygen, link, meta, param, source, track, and wbr.

Answer 2

Answer:

Elements that exist in pair are called diatomic elements.

Explanation:

example H2,Cl2, F2