Question

Atomic radius __________ across the period.

Answer 1

Answer on question #61683, Chemistry, Inorganic Chemistry

Atomic radius ______ across the period.

Solution:

As you go across a period, electrons are added to the same energy level. At the same time, protons are being added to the nucleus. The concentration of more protons in the nucleus creates a "higher effective nuclear charge." In other words, there is a stronger force of attraction pulling the electrons closer to the nucleus resulting in a smaller atomic radius.

Answer: decreases

Atomic radius decreases across the period.