Question

What is the similarity in the electronic structure of the following set of atoms
a lithium
b sodium
c potassium
Which of the above elements is most reactive and why

Answer 1

sodium is the most reactive element because it has higher tendency to lose electron because it has only one electron at its outermost shell and by losing that electron it can get stable electronic configuration . That's why it is a reactive metal and can get react with any other element easily
HOPE ITS USEFUL

ALL THE BEST

Answer 2

Answer:

Lithium, Sodium, and Potassium have a similarity in them that is they all have one electron in their outermost orbit.

Explanation:

Lithium, Sodium, and Potassium have a similarity in them that is they all have one electron in their outermost orbit.