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name of krypton

Input interpretation

krypton (chemical element)
krypton (chemical element)

Periodic table location

Periodic table location
Periodic table location

Image

Image
Image

Basic elemental properties

atomic symbol | Kr atomic number | 36 short electronic configuration | [Ar]4s^23d^104p^6 Aufbau diagram | 4p 3d 4s block | p group | 18 period | 4 atomic mass | 83.798 u (unified atomic mass units)
atomic symbol | Kr atomic number | 36 short electronic configuration | [Ar]4s^23d^104p^6 Aufbau diagram | 4p 3d 4s block | p group | 18 period | 4 atomic mass | 83.798 u (unified atomic mass units)

Thermodynamic properties

phase at STP | gas melting point | -157.36 °C (rank: 95th) boiling point | -153.22 °C (rank: 87th) critical temperature | 209.41 K (rank: 14th) critical pressure | 5.5 MPa (rank: 14th) molar heat of fusion | 1.64 kJ/mol (rank: 85th) molar heat of vaporization | 9.02 kJ/mol (rank: 87th) specific heat at STP | 248.05 J/(kg K) (rank: 43rd) adiabatic index | 5/3 (rank: 1st) (properties at standard conditions)
phase at STP | gas melting point | -157.36 °C (rank: 95th) boiling point | -153.22 °C (rank: 87th) critical temperature | 209.41 K (rank: 14th) critical pressure | 5.5 MPa (rank: 14th) molar heat of fusion | 1.64 kJ/mol (rank: 85th) molar heat of vaporization | 9.02 kJ/mol (rank: 87th) specific heat at STP | 248.05 J/(kg K) (rank: 43rd) adiabatic index | 5/3 (rank: 1st) (properties at standard conditions)

Material properties

density | 0.00375 g/cm^3 (rank: 88th) molar volume | 22300 cm^3/mol refractive index | 1.000427 sound speed | 1120 m/s (rank: 64th) thermal conductivity | 0.00943 W/(m K) (rank: 91st) (properties at standard conditions)
density | 0.00375 g/cm^3 (rank: 88th) molar volume | 22300 cm^3/mol refractive index | 1.000427 sound speed | 1120 m/s (rank: 64th) thermal conductivity | 0.00943 W/(m K) (rank: 91st) (properties at standard conditions)

Electromagnetic properties

magnetic type | diamagnetic volume magnetic susceptibility | -1.65×10^-8 mass magnetic susceptibility | -4.4×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -3.69×10^-10 m^3/mol (cubic meters per mole) color | (colorless) refractive index | 1.000427
magnetic type | diamagnetic volume magnetic susceptibility | -1.65×10^-8 mass magnetic susceptibility | -4.4×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -3.69×10^-10 m^3/mol (cubic meters per mole) color | (colorless) refractive index | 1.000427

Reactivity

valence | 2 electronegativity | 3 electron affinity | 0 kJ/mol (kilojoules per mole) first ionization energy | 1350.8 kJ/mol (kilojoules per mole) ionization energies | 1350.8 kJ/mol | 2350.4 kJ/mol | 3565 kJ/mol | 5070 kJ/mol | 6240 kJ/mol | 7570 kJ/mol | 10710 kJ/mol | 12138 kJ/mol | 22274 kJ/mol | 25880 kJ/mol | 29700 kJ/mol | 33800 kJ/mol | 37700 kJ/mol | 43100 kJ/mol | 47500 kJ/mol | 52200 kJ/mol | 57100 kJ/mol | 61800 kJ/mol | 75800 kJ/mol | 80400 kJ/mol | 85300 kJ/mol
valence | 2 electronegativity | 3 electron affinity | 0 kJ/mol (kilojoules per mole) first ionization energy | 1350.8 kJ/mol (kilojoules per mole) ionization energies | 1350.8 kJ/mol | 2350.4 kJ/mol | 3565 kJ/mol | 5070 kJ/mol | 6240 kJ/mol | 7570 kJ/mol | 10710 kJ/mol | 12138 kJ/mol | 22274 kJ/mol | 25880 kJ/mol | 29700 kJ/mol | 33800 kJ/mol | 37700 kJ/mol | 43100 kJ/mol | 47500 kJ/mol | 52200 kJ/mol | 57100 kJ/mol | 61800 kJ/mol | 75800 kJ/mol | 80400 kJ/mol | 85300 kJ/mol
Reactivity
Reactivity

Atomic properties

term symbol | ^1S_0 atomic radius | 88 pm covalent radius | 116 pm van der Waals radius | 202 pm (electronic ground state properties)
term symbol | ^1S_0 atomic radius | 88 pm covalent radius | 116 pm van der Waals radius | 202 pm (electronic ground state properties)
(neutral krypton atomic spectrum)
(neutral krypton atomic spectrum)

Abundances

universe abundance | 4×10^-6 mass% (rank: 30th) crust abundance | 1.5×10^-8 mass% (rank: 82nd) ocean abundance | 2.1×10^-8 mass% (rank: 36th) universe molar abundance | 6×10^-8 mol% (rank: 31st) ocean molar abundance | 1.6×10^-9 mol% (rank: 48th) crust molar abundance | 4×10^-9 mol% (rank: 83rd)
universe abundance | 4×10^-6 mass% (rank: 30th) crust abundance | 1.5×10^-8 mass% (rank: 82nd) ocean abundance | 2.1×10^-8 mass% (rank: 36th) universe molar abundance | 6×10^-8 mol% (rank: 31st) ocean molar abundance | 1.6×10^-9 mol% (rank: 48th) crust molar abundance | 4×10^-9 mol% (rank: 83rd)

Nuclear properties

half-life | (stable) stable isotopes | Kr-84 (57%) | Kr-86 (17.3%) | Kr-82 (11.58%) | Kr-83 (11.49%) | Kr-80 (2.28%) | Kr-78 (0.35%) nuclear spin | Kr-69: 5/2^- | Kr-70: 0^+ | Kr-71: 5/2^- | Kr-72: 0^+ | Kr-73: 3/2^- | Kr-74: 0^+ | Kr-75: 5/2^+ | Kr-76: 0^+ | Kr-77: 5/2^+ | Kr-78: 0^+ | Kr-79: 1/2^- | Kr-80: 0^+ | Kr-81: 7/2^+ | Kr-82: 0^+ | Kr-83: 9/2^+ | Kr-84: 0^+ | Kr-85: 9/2^+ | Kr-86: 0^+ | Kr-87: 5/2^+ | Kr-88: 0^+ | Kr-89: 3/2^+ | Kr-90: 0^+ | Kr-91: 5/2^+ | Kr-92: 0^+ | Kr-93: 1/2^+ | Kr-94: 0^+ | Kr-95: 1/2^+ | Kr-96: 0^+ | Kr-97: 3/2^+ | Kr-98: 0^+ | Kr-99: 3/2^+ | Kr-100: 0^+ unstable isotopes | Kr-81 (0.229 Myr) | Kr-85 (10.731 yr) | Kr-79 (35.04 h) | Kr-76 (14.8 h) | Kr-88 (170 min) | Kr-87 (76.33 min) | Kr-77 (74.33 min) | Kr-74 (11.5 min) | Kr-75 (4.28 min) | Kr-89 (189 s) | Kr-90 (32.32 s) | Kr-73 (27.3 s) | Kr-72 (17.1 s) | Kr-91 (8.57 s) | Kr-92 (1.84 s) | Kr-93 (1.286 s) | Kr-94 (212 ms) | Kr-95 (114 ms) | Kr-71 (100 ms) | Kr-96 (80 ms) | Kr-97 (63 ms) | Kr-70 (52 ms) | Kr-98 (46 ms) | Kr-99 (40 ms) | Kr-69 (32 ms) | Kr-100 (300 ns) neutron cross-section | 25 b neutron mass absorption | 0.013 m^2/kg
half-life | (stable) stable isotopes | Kr-84 (57%) | Kr-86 (17.3%) | Kr-82 (11.58%) | Kr-83 (11.49%) | Kr-80 (2.28%) | Kr-78 (0.35%) nuclear spin | Kr-69: 5/2^- | Kr-70: 0^+ | Kr-71: 5/2^- | Kr-72: 0^+ | Kr-73: 3/2^- | Kr-74: 0^+ | Kr-75: 5/2^+ | Kr-76: 0^+ | Kr-77: 5/2^+ | Kr-78: 0^+ | Kr-79: 1/2^- | Kr-80: 0^+ | Kr-81: 7/2^+ | Kr-82: 0^+ | Kr-83: 9/2^+ | Kr-84: 0^+ | Kr-85: 9/2^+ | Kr-86: 0^+ | Kr-87: 5/2^+ | Kr-88: 0^+ | Kr-89: 3/2^+ | Kr-90: 0^+ | Kr-91: 5/2^+ | Kr-92: 0^+ | Kr-93: 1/2^+ | Kr-94: 0^+ | Kr-95: 1/2^+ | Kr-96: 0^+ | Kr-97: 3/2^+ | Kr-98: 0^+ | Kr-99: 3/2^+ | Kr-100: 0^+ unstable isotopes | Kr-81 (0.229 Myr) | Kr-85 (10.731 yr) | Kr-79 (35.04 h) | Kr-76 (14.8 h) | Kr-88 (170 min) | Kr-87 (76.33 min) | Kr-77 (74.33 min) | Kr-74 (11.5 min) | Kr-75 (4.28 min) | Kr-89 (189 s) | Kr-90 (32.32 s) | Kr-73 (27.3 s) | Kr-72 (17.1 s) | Kr-91 (8.57 s) | Kr-92 (1.84 s) | Kr-93 (1.286 s) | Kr-94 (212 ms) | Kr-95 (114 ms) | Kr-71 (100 ms) | Kr-96 (80 ms) | Kr-97 (63 ms) | Kr-70 (52 ms) | Kr-98 (46 ms) | Kr-99 (40 ms) | Kr-69 (32 ms) | Kr-100 (300 ns) neutron cross-section | 25 b neutron mass absorption | 0.013 m^2/kg

Identifiers

CAS number | 7439-90-9 PubChem CID number | 5416 Gmelin number | 16201
CAS number | 7439-90-9 PubChem CID number | 5416 Gmelin number | 16201

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