Chemistry · Periodic Classification
Arrange the given elements in the increasing order of their atomic radius: Na, Rb, K, Mg.
- 1Na < K < Mg < Rb
- 2Rb < K < Mg < Na
- 3Mg < Na < K < Rb✓
- 4K < Na < Mg < Rb
Correct answer
Mg < Na < K < Rb
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