Introduction to Quantum Mechanics Video Lessons

Concept: The Quantum Mechanical Picture of the Atom

# Problem: Give the set of four quantum numbers that represent the last electron added (using the Aufbau principle) to the CI atom. A. n = 2, l = 1, ml = +1, ms = + 1/2 B. n = 3, l = 0, ml = 0, ms = - 1/2 C. n = 3, l = 1, ml = +1, ms = + 1/2 D. n = 3, l = 2, ml = +1, ms = - 1/2 E. n = 4, l = 1, ml = - 1, ms = - 1/2

###### FREE Expert Solution

We are being asked to determine the set of four quantum numbers representing the last electron added to the Cl atom

To solve this, we will first determine the electronic configuration of Cl atom

Recall: For a neutral element, Atomic number = # protons = # of electrons

86% (330 ratings)
###### Problem Details

Give the set of four quantum numbers that represent the last electron added (using the Aufbau principle) to the CI atom.

A. n = 2, l = 1, ml = +1, ms = + 1/2

B. n = 3, l = 0, ml = 0, ms = - 1/2

C. n = 3, l = 1, ml = +1, ms = + 1/2

D. n = 3, l = 2, ml = +1, ms = - 1/2

E. n = 4, l = 1, ml = - 1, ms = - 1/2