2d Orbital

[akemiwebster2G]

Just curious, but why is a 2d orbital impossible?

[Sohan Talluri 1L]

A 2d orbital is impossible because the angular momentum quantum number (l) that describes orbital shape only has allowed values ranging from 0 to n-1. In this case, the principal quantum number (n) is 2, which means the angular momentum quantum number is limited to having a value of either 0 or 1, which correspond to the s-orbital and p-orbital respectively. A d-orbital would correspond to l=2, which is impossible in this scenario.

Hopefully this helps, and please correct me if there are any mistakes.

[Rachel Fox - 3F]

A 2d orbital is impossible based on the quantum numbers. The principal quantum n is 2, which means that the possible angular momentum quantum numbers l are 0...n-1 which are 1 and 0. The value of l for a d orbital is 2, which is greater than 1. Therefore, there cannot be a d orbital because the value of l cannot be equal to the value of n.

[Naomi Christian 1E]

There cannot be a 2d orbital due to the quantum numbers. For 2d, the principal quantum number, n, is 2. L, relating to which orbital (s, p, d, etc.), can be any value that is 1 less than n. The value of n cannot equal the value of L. So, L can be 1 or 0. L=0 is the s orbital, L=1 is the p orbital, and L=2 (d orbital) cannot exist because n=2.

[Cassidy Chiong 2J]

HI!

We can presume that a 2d orbital is impossible based on quantum numbers. For n=2, we know that ℓ=1; in other words, the n=2 shell can only hold s (ℓ=0) and p (ℓ=1) subshells. Therefore, the 2d orbital cannot exist.

Hope that helps!

[Chris Van 2J]

The 2d subshell is impossible because using the principle quantum number, 2, the angular momentum number can only be from 0 to n-1. Thus, since n=2 in this case, the maximum angular momentum number is 1. When l=1, we learned that it indicates a p subshell!

[Lauren Wasef 3C]

A 2d orbital can’t exist because if you look at the periodic table, atoms in period 2 are part of the s and p orbitals.

[Tyler_Kim_2G]

A 2d orbital is impossible because the principal quantum number would be 2 and the orbital angular momentum quantum number would be 1 (as l=n-1). This would mean that only 2s and 2p subshells exist.

[Arshaun Faraji 2H]

This is not possible because atoms in period 2 are actually in the p and s orbitals, thus rendering it impossible.