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*Makes up most of the earth's atmosphere
*Used in lights
*Slide and movie projectors
*Does not harm living things
*Traps heat from windows

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Who: Sir William Ramsay and Morris M. Travers

How: while studying liquefied air

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[Ar]4s23d104p6

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*6 Stable Isotopes
*Two oxidation states
*Nonreactive gas

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*Crystallized structure
*Magnetic
*Colorless

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*boiling point:-153.4℃
*melting point 157.4℃
*density: 3.7 g/cm3
*state at room *temperature: gas

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*Non - metal
*Noble gas
*Group 18
*Period 4

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Krypton has an atomic mass of 83.8 units and its atomic number is 36

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Krypton has an atomic mass of 83.8 units and its atomic number is 36

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Museum-grade sample, a sample of the element Krypton in the Periodic Table

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Description and origins of Museum-grade sample, a sample of the element Krypton in the Periodic Table.