helium is noble gas has atomic number is 2. it don't react with any other element because outer most shell is complete.
Nathan
hot air ballon
Helium is a colourless, odourless gas. It belongs to group 18 and is chemically inert.
Helium has 2 protons, 2 neutrons and 2 electrons. The symbol for helium is He and the atomic number is 2.
The element that fits this description is helium. Helium is a noble gas with a full outer shell of 2 electrons, making it stable and nonreactive under normal conditions.
Helium is a noble gas, it is colourless, odourless gas at STP. It is a chemically inert element.
The planet Saturn does not have a solid surface. Saturn is almost entirely made up of gases, hydrogen and helium.
An alpha particle is the same as a helium nucleus. It contains 2 neutrons and 2 protons. It has no electrons, so it is not an atom.
Helium is a colorless, odorless, and tasteless gas that is the second lightest and second most abundant element in the universe. It is known for its low density and non-reactive properties, making it commonly used in applications like filling balloons or as a coolant in cryogenics.
A thin rubber felxible bag, narrow at one end. Blown up with air or helium. Typically used at parties and festivals.
Helium is the element that fits this description. Helium is a colorless, odorless, and non-reactive gas that does not conduct electricity. It has a density of about 90 mg/L at room temperature and pressure.
He - Helium