Q3 / 160 · AP EAMCET 2023 (15 May Shift 2) · Chemistry

The correct order of covalent radii of $\mathrm{Si}, \mathrm{Ge}, \mathrm{Sn}$ is:

  • A
    $\mathrm{Ge} < \mathrm{Si} < \mathrm{Sn}$
  • B
    $\mathrm{Sn} < \mathrm{Si} < \mathrm{Ge}$
  • Correct answer
    C
    $\mathrm{Si} < \mathrm{Ge} < \mathrm{Sn}$
  • D
    $\mathrm{Sn} < \mathrm{Ge} < \mathrm{Si}$

Solution

As we move down the group, the addition of shells causes an increase in the covalent radii of the group 14 elements. $\text { Thus, } \mathrm{Si} < \mathrm{Ge} < \mathrm{Sn} \text {. }$

Hence, the correct answer is option: 'C'.

Relevant Questions