Multiple choice

The maximum number of electrons that can have principal quantum number, n = 2, and spin quantum number, ms = +1/2, is __________.

  1. 1

  2. 4

  3. 8

  4. 9

  5. 18

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

For principal quantum number (n) = 2 Number of orbitals = n2 = 22 = 4 Total number of electrons = 2n2 = 8 So, number of electrons with ms = +1/2 will be 4.