Kr	Z =  36	◊ ◊ ◊ ◊ ◊	Krypton
			From the Greek "kryptos", meaning "hidden"
(AM) Atomic Mass	83.8  amu	♦	Oxidation States	0
(BP) Boiling Point	-152.3  °C	♦	(MP) Melting Point	-156.6  °C
(ρ) Density	0.003733  g/cm3	♦	Crystal Structure	Face Centered Cubic
( χ ) Electronegativity	n/a	♦	(AR) Atomic Radius	1.1  Å
Physical State	Gas	♦	(C) Heat Capacity	0.248  J/g °C
Electronic-Config	[Ar]  3d10  4s2  4p6	♦	(I1) First Ionization E	1350.69  kJ/mol
(ΔHvap) Heat of Vaporization	9.08  kJ/mol	♦	(ΔHfus) Heat of Fusion	1.64  kJ/mol
Year of Discovery	1898	♦	Location of Discovery	United Kingdom
(E°) Standard Potential	Inert
Stable isotopes	78Kr,  80Kr,  82Kr,  83Kr,  84Kr,  86Kr
Discovered/Synthesized by	Sir William Ramsay, Morris M. Travers
Natural Source	Isolated from the liquifaction of air
Common Uses	High-intensity lamps, headlights, flashlights, lanterns, neon tubes, lasers
Other Info	Probably has not existed on the Superman's planet Noble gas that can still form compounds
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