Which electron level would allow the hydrogen | vedclass

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(D) The $1s$ electronic level allows the hydrogen atom to absorb a photon but not to emit one. On absorption of radiation,the electron is transferred

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$1s$

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(D) The $1s$ electronic level allows the hydrogen atom to absorb a photon but not to emit one. On absorption of radiation,the electron is transferred from the $1s$ level to a higher energy level,such as $2s$ or $3s$. However,to emit a photon,an electron must transition from a higher energy level to a lower energy level. Since $1s$ is the ground state (the lowest energy level),the electron cannot transition to a lower energy level. Therefore,emission is not possible from the $1s$ state.

Which electron level would allow the hydrogen atom to absorb a photon but not emit a photon?

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