multiple choice question\nif an atom has 2 electrons in its innermost shell and 3 electrons in its outmost…
multiple choice question\nif an atom has 2 electrons in its innermost shell and 3 electrons in its outmost shell, how many valence electrons does it have?\no 3\no 2\no 5\no 1
Answer
Explanation:
Step1: Recall valence - electron definition
Valence electrons are electrons in the outermost shell of an atom.
Step2: Identify outermost - shell electrons
The atom has 3 electrons in its outermost shell.
Answer:
A. 3