Question

$Li$ and $Mg$ resembles each other because

• A. both are s-block elements
• B. both are metals
• C. both have almost same periodic properties
• D. they have same electronic configuration

Answer 1

The correct option is C both have almost same periodic properties

Due to its small size, lithium differs from other alkali metals but resembles with Mg as its size and other periodic properties are closer to Mg. Its resemblance with Mg is known as diagonal relationship.