Question

question 19 (1 point)
how many valence electrons does the element gallium have?
only type the number of electrons in the blank below (ex. 6)

question 20 (2 points)
draw the lewis dot diagram of thallium

Explanation:

Step1: Identify Gallium's group

Gallium (Ga) is in group 13 of the periodic table.

Step2: Determine valence - electrons

Elements in group 13 have 3 valence electrons.

Answer:

3