Multiple choice

The group number of an element is equal to:

  1. the total number of electrons in its atom

  2. the total number of protons in its atom

  3. total number of electrons and protons in an atom of the element

  4. the total number of electrons in outermost shell

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The total number of electrons present in the outermost shell of an atom represents the group number of the element.