carbon [C] barium [Ba] sodium [Na] manganese [Mn]
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Based on the Periodic Table of the Elements, which of these elements has properties most similar to calcium (Ca)?
Possibilities:
- carbon [C]
- barium [Ba]
- sodium [Na]
- manganese [Mn]

barium [Ba]