Question

Discuss the following property and its variation in the group 15 elements:

Atomic radii

Answer 1

1. As compared to group 14 elements, group 15 elements have smaller atomic radii.
2. Moving down the group causes the atomic radii to rise.
3. The elements in group 15 have smaller atomic radii because their electrons are more strongly drawn to the nucleus due to their higher nuclear charge than those in group 14.
4. Each following element adds an electron shell, increasing the atom's size as it moves down the group.