Which of the following elements has the largest atoms?
A) Al
B) Mg
C) Na
D) None, they are all the same size.

Question

Quizplus · Accepted Answer

The size of an atom is determined by the number of electrons and the distance between the electrons and the nucleus. Sodium (Na) has the largest atomic radius because it has only one valence electron, so the distance between the electron and the nucleus is greater than in the other options (which have multiple valence electrons).

Which of the Following Elements Has the Largest Atoms