[cloud5]

How come 24-Sodium isotope has 5 orbitals? <--This was found in my book.

[Cherriyan]

What's exactly mentioned in your book about this?
The number of orbitals filled with electrons doesn't depend on mass number, be it 23 or 24.

[cloud5]

What's exactly mentioned in your book about this?
The number of orbitals filled with electrons doesn't depend on mass number, be it 23 or 24.

The question is asking me how many fully-filled orbitals are there and the answer given is 5 orbitals. Can you explain?

[DrCMS]

What's exactly mentioned in your book about this?
The number of orbitals filled with electrons doesn't depend on mass number, be it 23 or 24.

The question is asking me how many fully-filled orbitals are there and the answer given is 5 orbitals. Can you explain?

Sodium's electronic configuration is 1S² 2S² 2P⁶ 3S¹ so that is 3 filled orbitals and one partially filled.

[Cherriyan]

Electronic configuration of Na is 1s²2s²2p⁶3s¹.
There are 3 fully filled subshells: 1s, 2s, 2p.
But since p subshell has 3 orbitals, the total number of fully filled orbitals is 5! (1s, 2s, 2p_x, 2p_y, 2p_z)

[cloud5]

Electronic configuration of Na is 1s²2s²2p⁶3s¹.
There are 3 fully filled subshells: 1s, 2s, 2p.
But since p subshell has 3 orbitals, the total number of fully filled orbitals is 5! (1s, 2s, 2p_x, 2p_y, 2p_z)

Thank you! You solved my problem! <3

[Cherriyan]

You're welcomed!