# The element Ga has how many valence electrons?

Jun 11, 2017

$3$

#### Explanation:

For the representative elements (the main group elements), which are groups 1, 2, and 13-18, the number of valence electrons is directly related to what group it's in:

• Groups 1 and 2 elements have one and two valence electrons, respectively.

• Groups 13-18 elements have three, four, five, six, seven, and eight valence electrons, in progressive order.

Gallium ($\text{Ga}$) is located in group 13, so it therefore has color(blue)(3 valence shell electrons.