Question

What are the differences between He and 2He ?​

Answer 1

Answer:

2He is the element.(atom)

He is used in Chemical Reactions(Molecule)

Answer 2

Answer:

He is a chemical element with atomic number 2, known as Helium. While, 2He, is two atoms of helium.

Explanation:

Two atoms of helium together makes 2He. Helium is a colorless, odorless, non-toxic, tasteless and monoatomic gas. In the nature it exists in the gaseous form.

It is used in the welding of metals. It is also used in the manufacturing of the mobile chips and other electronics. It is filled in airbags. The most common form of helium gas is seen in the balloons which gets lifted up. This is because they are filled with helium gas.