The radius of the innermost electron orbit of a hydrogen atom is $5.3 \times 10^{-11} \text{ m}$. What is the radius of the $n = 3$ orbit?

  • A
    $1.59 \times 10^{-10} \text{ m}$
  • B
    $1.06 \times 10^{-10} \text{ m}$
  • C
    $1.43 \times 10^{-9} \text{ m}$
  • D
    $4.77 \times 10^{-10} \text{ m}$

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