Question

$Mg$ and $Li$ and similar in their properties due to:

• A. same $\frac{e}{m}$ ratio
• B. same electron affinity
• C. same group
• D. same radius

Answer 1

Answer: (D)

same radius

$Li$ and $Mg$ show diagonal relationship due to the similarity in size (radius), electronegativity, ionisation enthalpy and charge/radius ratio.