Question

Which of the following subshell is not possible
4d
5s
3f
5p

Answer 1

$\huge\mathfrak{Answer:-}$

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⭕ In the third shell, only 3s, 3p and 3d orbitals exists.

• This is because the third shell can accommodate a maximum of 18 electrons.

⭕ Therefore, 3f orbital does not exist.

• Possible orbitals are

1s

2s 2p

3s 3p 3d

4s 4p 4d 4f

5s 5p 5d 5f

6s 6p

7s

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$\huge\mathfrak{Thank you :)}$