What is the maximum number of electrons that can fit into the innermost shell of an atom?

Question

Quizplus · Accepted Answer

The innermost shell or the first energy level of an atom can hold a maximum of 2 electrons. This is because it contains only one subshell (1s) which can accommodate two electrons, one with spin up and the other with spin down. Option A is incorrect as this subshell can hold 2 electrons. Option C is incorrect as it refers to the maximum number of electrons that can fill up to the second shell where there are 4 subshells. Option D is incorrect as no atomic shell can hold more than 8 electrons.

What Is the Maximum Number of Electrons That Can Fit