Question

5/100
which element is classified as a metalloid?
neon
sodium
silicon
oxygen

Explanation:

To determine the metalloid, we recall: Neon is a noble gas (non - metal), Sodium is an alkali metal (metal), Silicon is a metalloid (has properties of both metals and non - metals), and Oxygen is a non - metal (gas, non - metallic properties). So Silicon is the metalloid.

Answer:

Silicon (the option with "Silicon" text, which is the third option from the left among the given choices)