Question

Which element has the fewest valence electrons available for bonding?

Answer 1

Elements with a plus one charge have the fewest valence electrons among all groups and elements in the periodic table. This includes lithium, soldium, potassium, rubidium, cesium and francium. The number of valence electrons increase from left to right. The highest number of valence electrons include the noble gases. 

Answer 2

Aluminum with three valence electrons.

Step-by-step explanation:

This element belong in the IIIA group, thus having three valence electrons.

Valence electrons, are electrons of an element found in the outer most orbit, these are the electrons available for bonding.