Question

1. in the electron configuration 1s², the 1 represents the _____, the s represents the ___, and the ² represents the _____. c. principal energy level, number of electrons, sublevel a. number of electrons, principal energy level, sublevel d. principal energy level, sublevel, number of electrons b. number of electrons, sublevel, principal energy level

Explanation:

In electron configuration notation, the number before the letter (e.g., 1 in \(1s^{2}\)) represents the principal energy level. The letter (s in this case) represents the sublevel. The superscript (2 here) represents the number of electrons in that sublevel.

Answer:

D. principal energy level, sublevel, number of electrons