Question

Which of the following set of elements is written in order of their increasing metallic character?

• A. $Be<Mg<Ca$
• B. $Na<Li<K$
• C. $Mg<Al<Si$
• D. $C<O<N$

Answer 1

The correct option is A $Be<Mg<Ca$

The metallic character increases as we move down the group in the modern periodic table. Thus the correct order of metallic character is $Be<Mg<Ca$.

Also, the metallic character decreases across the period.