Question

Atomic radius of element ___________in a period from left to right

Answer 1

Answer:

increase..............

Answer 2

Answer:

decreases

Explanation:

Atomic radius decreases from left to right within a period. This is caused by the increase in the number of protons and electrons across a period. One proton has a greater effect than one electron; thus, electrons are pulled towards the nucleus, resulting in a smaller radius.