NITROGEN

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• Does not combust
• Can't support life
• Boils at -320.5°F
• Colorless, odorless, tasteless, and non irritating.
• Freezes at 346°F
• Molecular weight: 28.01
• Used for cooling things.
• Forms ammonia

MERCURY

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• Atomic mass: 200.59 g/mole
• Toxic to living things
• Specific gravity is 13.5 time that of water
• Boils at 674.1°F
• Freezing point 37.89°F
• Density 13.594 kg/m3
• Atomic number 80
• Atomic radius is150pm
• It is not flammable

CHLORINE

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• Atomic mass: 35.5
• Atomic number: 17
• Boiling Point: -29.27°F
• Freezing Point: -150-7°F