Introduction to Quantum Mechanics Video Lessons

Concept: The Quantum Mechanical Picture of the Atom

# Problem: What information is needed to determine the energy of an electron in a many-electron atom? Check all that apply. a) nb) ℓc) mld) msWhat information is needed to determine the orientation of orbital?a) nb) ℓc) mld) msWhat information is most important in determining the size of an orbitaI?a) nb) ℓc) mld) msWhat information is needed to determine the general shape of an orbital?a) nb) ℓc) mld) ms

###### FREE Expert Solution

Recall that the quantum numbers that define an electron are:

Principal Quantum Number(n): deals with the size and energy of the atomic orbital

The possible values for n are 1 to ∞.

Angular Momentum Quantum Number (l): deals with the shape of the atomic orbital

The possible values for l are 0 to (n – 1).

Magnetic Quantum Number (ml): deals with the orientation of the atomic orbital in 3D space.

The possible values for ml are the range of l:  –l to +l.

###### Problem Details

What information is needed to determine the energy of an electron in a many-electron atom? Check all that apply.

a) n

b) ℓ

c) ml

d) ms

What information is needed to determine the orientation of orbital?

a) n

b) ℓ

c) ml

d) ms

What information is most important in determining the size of an orbitaI?

a) n

b) ℓ

c) ml

d) ms

What information is needed to determine the general shape of an orbital?

a) n

b) ℓ

c) ml

d) ms