In compounds, Group IA metals always: -have a charge of −1 -have a charge of 0 -have a charge of +1 -have a different charge, depending on which other elements are in the compound

Answer

-have a charge of +1

Explanation

Group IA elements include Lithium, Sodium, Potassium, Rubidium and Cesium and are commonly known as alkali metals. All elements in a given group tend to form what is known as monoatomic ions which have the same charge.  A group 1 element loses one electron from its outermost energy level to form an ion of +1 charge.

Reference

MCAT General Chemistry Review 2018-2019: Online + Book, Volume 4

By Kaplan Test Prep Page 136