MCQ
$Li$ and $Mg$ resembles each other because
- Aboth are $s-$block elements
- Bboth are metals
- ✓both have almost same periodic properties
- Dthey have same electronic configuration
✓
Answer
Correct option: 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.
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