Quantum Number

Quantum numbers are quantized values used to describe electrons in an atom

• No

• Yes

There are ONLY three quantum numbers represented by the letters n (Bohr’s number), l and m_l

• Yes

• No

The Principal Quantum Number (n) relates to the main energy of an electron where electrons with higher ‘n’ values have lower energy

• Yes

• No

‘l ’ relates to the shape of the electrons’ orbits

and allowable values of l = 0 to l = n - 1

• Yes

• No

Electrons with the same l value but

different m_l values have the different energy

and orientations

• Yes

• No

What is the value of n for orbital in the 4d subshell?

• 4

• 3

• 3

• 1

What is the value of l for orbital in the 4d subshell?

• 0

• 1

• 2

• 3

List all values of m_l for orbital in the 4d subshell?

• 0

• -1,0,-1

• -2,-1,0,1,2

• -3,-2,-1,0,1,2,3