Question

Which subshell is common to all sub-shells?

Answer 1

Hint: In chemistry and atomic physics, an electron shell is an orbit that electrons follow around the nucleus of an atom. The "1 shell" (also known as the "K shell") is the closest to the nucleus, followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on as you get further away from the nucleus. The shells are either named alphabetically with the letters used in X-ray nomenclature (K, L, M,...) or they correlate to the main quantum numbers (n = 1, 2, 3, 4,...).

Complete Step By Step Answer:
Each shell is made up of one or more subshells, each of which is made up of atomic orbitals. For example, the first (K) shell has one subshell, 1s; the second (L) shell has two subshells, 2s and 2p; the third shell has 3s, 3p, and 3d; the fourth shell has 4s, 4p, 4d, and 4f; and the fifth shell has 5s, 5p, 5d, and 5f and can theoretically hold more in the 5g subshell that is not occupied in any known element's ground-state electron configuration.
The "subshell label," a lowercase-letter label for the subshell type, is the first column. The "4s subshell," for example, is a fourth (N) shell subshell with the type (s) given in the first row.
The subshell's azimuthal quantum number (l) appears in the second column. The precise definition is based on quantum physics, however the subshell is defined by a number.
The greatest number of electrons that can be crammed into a subshell of that kind is listed in the third column. The top row, for example, states that each s-type subshell (1s, 2s, etc.) can only have two electrons. Each figure is four times larger than the one before it.
The fourth column indicates which shells have that sort of subshell. In the first two rows, for example, every shell has s subshell, but only the second and above shells have a p subshell (i.e., there is no "1p" subshell).
The last column explains where the letters s, p, d, and f came from. They're based on early research into atomic spectral lines. The remaining labels, g, h, and I are alphabetical continuations of the final historically founded label, f.
Hence s subshell is the correct answer.

Note:
Although it is frequently said that all electrons in a shell have the same energy, this is only a rough estimate. However, the energy levels of electrons in one subshell are identical, with later subshells having greater energy per electron than early ones. The energy ranges associated with shells can overlap because of this phenomenon.