Asked in NUMS 2015 2015Moderate

The maximum number of electrons in an atom with n=3 and l=2 is:

Correct answer: A. 10

  • A. 10
  • B. 6
  • C. 18
  • D. 0

Explanation

In this case l = 2then m = −2,−1,0,+1,+2so there are 5 orbitals and each orbital contain 2 electronsSo for value n = 3 and l= 2 there are 10 electrons.The maximum number of electrons in a subshell with l=2 and n=3 is 10.

Last updated

About Quantum Numbers

Quantum numbers describe an electron's energy level, subshell, orbital orientation and spin. You examine the principal, azimuthal, magnetic and spin quantum numbers, their allowed values, orbital capacity and how they determine electronic configurations and distinguish electrons within an atom.

Practise Atomic Structure

922 free Atomic Structure MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Chemistry questions like this

Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions