One requires energy ${\mathrm{E}}_{\mathrm{n}}$ to remove a nucleon from a nucleus and an energy ${\mathrm{E}}_{\mathrm{e}}$ to remove an electron from the orbit of an atom. Then

• A

  ${\mathrm{E}}_{\mathrm{n}}={\mathrm{E}}_0$

• B

  ${\mathrm{E}}_{\mathrm{n}}<{\mathrm{E}}_0$

• C

  ${\mathrm{E}}_{\mathrm{n}}>{\mathrm{E}}_0$

• D

  ${\mathrm{E}}_{\mathrm{n}}\ge {\mathrm{E}}_e$