Question

how does an atomic size changes as we might ve from light to right in a period of a modern periodic table​

Answer 1

Answer:

may be ...

Explanation:

The atomic radius usually increases while going down a group due to the addition of a new energy level (shell which causes shrinkage in the size of the atoms across the period). However, atomic radii tend to increase diagonally, since the number of electrons has a larger effect than the size able nucleus.