Question

Which pair of elements has the most similar properties?

A) N and P
B) K and He
C) I and CA
D) Li and B

Answer 1

Answer:

So, the elements with similar properties to sodium (Na) are all of those elements in the same Group.

Explanation:

The ones "most" similar would be the ones closest in mass as well. Those would be Lithium (Li) and Potassium (K).

Answer 2

Answer:A) N and P

Explanation:

N and P, because they are in the same group on the periodic table. This is because they both have 3 valence electrons, and properties of elements are dependent partly on the number of valence electrons they have.