Question

An element A has atomic number 7. It will have properties similar to the element with the atomic number:

• A. 85
• B. 57
• C. 26
• D. 51

Answer 1

The correct option is D 51

The elements of same group have similar properties. A has atomic number $7$ and hence belongs to group $15$. Out of given options, element of atomic number $51$ belong to same group. Hence A resembles properties of that element. Thus correct answer is option D