Question

in an electron configuration code, superscripts placed on sub - levels indicate the number of _______. a shells b electrons c sub - shells d orbitals

Explanation:

In electron - configuration notation, the superscripts on sub - levels represent the number of electrons in that particular sub - level. For example, in the electron configuration of hydrogen $1s^1$, the superscript '1' on the '1s' sub - level indicates that there is 1 electron in the 1s sub - level.

Answer:

B. Electrons