The Elements: Neon

Neon is a colorless gas that emits a bright orange-red glow when electrified. It belongs to the noble gases group, making it highly unreactive and existing as single atoms. While abundant in the universe, neon is rare on Earth, contributing to its cost. Despite this, neon is used commercially in helium-neon lasers and neon lights.

What happens to neon when electricity is passed through it?

• It turns into a liquid.

• It emits a bright orange-red glow.

• It becomes a solid.

• It becomes highly reactive.

Which group of the periodic table does neon belong to?

• Group 1

• Group 0

• Group 2

• Group 18

Why is neon considered inert?

• It reacts with many elements.

• It is highly reactive.

• It forms compounds easily.

• It exists as single, unbonded atoms.

How does the abundance of neon on Earth compare to its abundance in the universe?

• It is less abundant on Earth.

• It is equally abundant on Earth and in the universe.

• It is more abundant on Earth.

• It is not found in the universe.

In which field are helium-neon lasers commonly used?

• Surgery

• Agriculture

• Cooking

• Astronomy