What is Helium?
Helium is the chemical element of atomic number 2, an inert gas that is the lightest member of the noble gas series.
Example of Helium!
Balloons are Helium! Hot air balloons, party balloons, etc.
Protons, Electrons, and Neutrons
# of Protons- 2
# of Electrons- 2
# of Neutrons- 4
The atomic mass - 4.0026
The atomic number- 2
Pierre Janssen is the person who discovered the Helium element.
Helium is made from radioactive decay.