Question #3a3da

1 Answer
SCooke
Aug 20, 2017

In order of increasing atomic radius, this would be:
(smallest) F < N < Na < K (largest)

Explanation:

The Periodic Trend is to increase radius as you move down a Group and to decrease as you move across a Period . This is due to the stronger attractive force of the nuclear protons on the same-shell electrons added to an atom compared to a "volumetric" increase from additional electrons.

The groups increase in radius because both the nuclear size and the electron shells involved increase.
enter image source here

Related questions
See all questions in Periodic Trends in Atomic Size
Impact of this question
1236 views around the world
You can reuse this answer
Creative Commons License