Q4 / 160 · AP EAMCET 2023 (18 May Shift 2) · Chemistry

The correct order of the metallic nature of the following elements is

  • A
    $\mathrm{Si}>\mathrm{Al}>\mathrm{Na}>\mathrm{Hg}$
  • Correct answer
    B
    $\mathrm{Na}>\mathrm{Mg}>\mathrm{Al}>\mathrm{Si}$
  • C
    $\mathrm{Al}>\mathrm{Mg}>\mathrm{Na}>\mathrm{Si}$
  • D
    $\mathrm{Mg}>\mathrm{Na}>\mathrm{Al}>\mathrm{Si}$

Solution

Metallic nature decreases in a period from left to right due to an increase in the effective nuclear charge.

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

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