84.4k views
4 votes
Alkali metals, alkaline earth metals, and aluminum all form ions with positive changes equal to the

A. Atomic mass
B. Group number
C. Atomic number
D. Period

1 Answer

4 votes
B. Group number
For example, Sodium(Na) is in Group 1 and Na^+ has a charge of +1.
User Athspk
by
8.1k points