f) Xenon is a noble gas.
Noble gases
Noble gases are a group of chemical elements with similar characteristics; under normal conditions, they are all odourless, colourless, monatomic gases with very low chemical reactivity. Historically, noble gases were also known as inert gases. Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radioactive radon are the six naturally occurring noble gases (Rn).
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