Krypton Element Properties

Krypton

p35
Br
Bromine
p36
Kr
Krypton
s37
Rb
Rubidium
General
Name(Krypton)
Symbol(Kr)
Number(36)
Group Number(18)
Group(Noble Gas)
Block(p)
Density(0.003708 g/cm3)
Atomic Weight(83.80 g/mol)
Atomic Volume(38.9 cm3/mol)
Discover(1898)


States
State(Gas)
Melting Point(115.79 K)
Boiling Point(119.93 K)
Triple Point(115.775 K)
Critical Point(209.41 K)
Heat of Fusion(1.64 kJ/mol)
Heat of Vaporization(9.08 kJ/mol)


Energies
First Ionization Energy(1350.7 kJ/mole)
Second Ionization Energy(2350.3 kJ/mole)
Third Ionization Energy(3565.1 kJ/mole)
Electronegativity(3)
Electron Affinity(Nil)
Specific Heat(0.248 J/gK)
Heat Atomization(0 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,8)
Electron Configuration([Ar] 3d10 4s2 4p6)
Minimum Oxidation Number(0)
Maximum Oxidation Number(2)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(2)


Appearance and Characteristics
Crystal Structure(cubic face centered)
Characteristics(unreactive)
Color(colorless)
Uses(lamps, UV-laser)
Hardness(mohs)
Toxicity(No)


Reactions
Reaction with Air(None)
Reaction with 6M HCl(None)
Reaction with 15M HNO3(None)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(6)
Hydride(None)
Oxide(None)
Chloride(None)


Radius
Atomic Radius(112 pm)
Ionic Radius (1+ ion)(Nil)
Ionic Radius (1- ion)(Nil)
Ionic Radius (2+ ion)(Nil)
Ionic Radius (2- ion)(Nil)
Ionic Radius (3+ ion)(Nil)


Conductivity
Thermal Conductivity(0.01 J/m-sec-deg)
Electrical Conductivity(0 1/mohm-cm)
Polarizability(2.5 A3)


Abundance
Source(Air)
Relation Abundance Solar System(1.653 log)
Abundance Earths Crust(-4 log)


p35
Br
Bromine
p36
Kr
Krypton
s37
Rb
Rubidium

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