Question

1. the alkali metals are in group ____. (3pts)

□ 1a
□ 2a
□ 5a
□ 7a

Explanation:

Alkali metals are a group of highly reactive soft metals, and they are defined as being in group 1A (also called group 1) of the periodic table. Group 2A contains alkaline earth metals, group 5A contains pnictogens, and group 7A contains halogens.

Answer:

$\boldsymbol{\square}$ 1A