Which of the following statements are correct | vedclass

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(D) Statement $(a)$ is incorrect: When an electron moves from a higher energy level $(n=4)$ to a lower energy level $(n=2)$,it emits energy,it does no

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Only $c$

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(D) Statement $(a)$ is incorrect: When an electron moves from a higher energy level $(n=4)$ to a lower energy level $(n=2)$,it emits energy,it does not gain it.Statement $(b)$ is incorrect: Energy of an orbital increases with the principal quantum number $(n)$. Thus,a $3p$ orbital has higher energy than a $2p$ orbital.Statement $(c)$ is correct: Any $s$-orbital (or subshell) can hold a maximum of $2$ electrons.Statement $(d)$ is incorrect: The maximum number of electrons in an orbit is given by $2n^2$. For the $3^{rd}$ orbit $(n=3)$,the maximum number of electrons is $2(3)^2 = 2(9) = 18$ electrons.

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