Statement $A$: Helium and Beryllium have the same outer electronic configuration of the type $ns^2$.
Reason $R$: Both are chemically inert.

  • A
    Statement $A$ and Reason $R$ are true,and Reason $R$ is the correct explanation of Statement $A$.
  • B
    Statement $A$ and Reason $R$ are true,but Reason $R$ is not the correct explanation of Statement $A$.
  • C
    Statement $A$ is true,but Reason $R$ is false.
  • D
    Statement $A$ and Reason $R$ are both false.

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