Among the elements `B, Mg, AI and K` the correct order of increasing metallic character is

Options

A. `B lt AI lt Mg lt K`
B. `B lt Mg lt AI lt K`
C. `Mg lt B lt AI lt K`
D. `Mg lt AI lt B lt K`

Answer

A

Explanation

In Periodic Table, metallic character of elements increases as we move down in a group and decreases as we move left to right in a period. Thus, correct order of metallic character of `B, Mg, Al and K` is
`B lt AI lt Mg lt K`