- Nitrogen and phosphorus belongs to nitrogen family , group 15 on the periodic table
- Elements in the same group on the periodic table of elements have similar properties
- Hence, nitrogen and phosphorus will have similar properties

- Nitrogen and phosphorus will have similar properties
- The chemical symbol for nitrogen is n
- The chemical symbol for phosphorus is p
- Hence, n and p will have similar properties

Hence, n and p will have similar properties
Question
Which pair of elements has the most similar properties?

Context
- Nitrogen and phosphorus belongs to nitrogen family , group 15 on the periodic table 
- Elements in the same group on the periodic table of elements have similar properties 
- The chemical symbol for nitrogen is n 
- The chemical symbol for phosphorus is p