use the periodic table to predict which element is nonmetallic and a gas at room temperature. a nitrogen b…
use the periodic table to predict which element is nonmetallic and a gas at room temperature. a nitrogen b potassium c silicon d sodium
Answer
Brief Explanations:
Nitrogen is a non - metallic element and exists as a gas at room temperature. Potassium is a metal. Silicon is a metalloid and is solid at room temperature. Sodium is a metal.
Answer:
A. nitrogen