 Helium

This is a section about Helium!

Helium is a very important subject about which there is a lot to say.

For example, this sentence. And then another one.

This is a section about Helium!

Helium is a very important subject about which there is a lot to say.

For example, this sentence. And then another one.

Helium is a colorless, odorless, tasteless, non-toxic, inert monatomic gas that is the second lightest and second most abundant element in the observable universe, after hydrogen. Its atomic number is 2, and its chemical symbol is He. Helium is classified as a noble gas, which means it has a very low reactivity due to its filled electron shell.