Which of the following are noble gases: helium, sodium, neon, oxygen, argon, hydrogen, calcium, magnesium, lithium, boron, krypton, nitrogen, xenon, aluminium, radon.
The noble gases are - helium, neon, argon, krypton, xenon, radon.
Instruction: Which of the following are noble gases: helium, sodium, neon, oxygen, argon, hydrogen, calcium, magnesium, lithium, boron, krypton, nitrogen, xenon, aluminium, radon.
Context: 
Response: The noble gases are - helium, neon, argon, krypton, xenon, radon.