Which group do noble gases belong to in the periodic table?

Which of these is NOT a noble gas?

What is the most abundant noble gas in the Earth's atmosphere?

Which noble gas is used in balloons?

What is the symbol for neon?

What is the atomic number of helium?

Noble gases are also known as:

Which noble gas is commonly used in arc welding?

The boiling point of noble gases generally:

Noble gases are usually found in nature as: