First ionisation enthalpy values of first four group $15$ elements are given below. Choose the correct value for the element that is a main component of apatite family $:$

  • A
    $1012 \ kJ \ mol^{-1}$
  • B
    $1402 \ kJ \ mol^{-1}$
  • C
    $834 \ kJ \ mol^{-1}$
  • D
    $947 \ kJ \ mol^{-1}$

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