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Updated on : 2022-09-05

Solution

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Correct option is D)

**Hint **

Quantum number: It is defined as the set of numbers which describes the position and energy of electrons in an atom. There are four quantum numbers: principal, azimuthal, magnetic and spin quantum numbers.

**Explanation **

**Step 1: Determine
the maximum number of subshells**

The principle quantum number ($n$) describe the distance between the nucleus and the electrons.

The azimuthal quantum number ($l$) is given by ($n−l$)

We know that the maximum number of subshells is equal to is $(2l+1)$.

**Step 2: Determine the maximum number of electrons in a subshell **Maximum electrons a subshell can accommodate is $2$

Therefore, the total number of electrons in a subshell is

$2(2l+1)=(4l+2)$

Thus, maximum number of electrons in a subshell is $(4l+2)$

**Final answer**

**The correct answer
is option (D).**

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