Question

part 1 (0.3 point)
a.
choose one:
group 1
group 2
group 13
group 14
group 15
group 16
group 17
group 18

Explanation:

The question involves identifying the group of an element (marked as 'X') in the periodic table. Group 13 elements (e.g., boron, aluminum) typically have 3 valence electrons, which aligns with the standard classification of this group. The selected option (Group 13) is the correct answer as per periodic table group definitions.

Answer:

Group 13