Question

Select the metalloid element from the given group of elements.

• A. Si
• B. Na
• C. Cl
• D. S

Answer 1

The correct option is A

Si

The metallic character of the elements decreases on moving across the period. Si is placed in the middle of the Modern Periodic Table, thus it exhibits properties of both metals and non-metals because of which it is classified as semi-metal or metalloid.