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Classifications |
Alternate Names | Kalium |
Names of Allotropes | None |
Block | s |
Group | 1 |
Period | 4 |
Series | Alkali Metal |
Electron Configuration | [Ar]4s1 |
Color | Silver |
Discovery | 1807 in The United Kingdom |
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Gas phase | N/A |
CAS Number | CAS7440-09-7 |
CID Number | |
RTECS Number | |
Electrical properties |
Electrical Type | Conductor |
Electrical Conductivity | 1.4×107 S/m |
Resistivity | 7.000000000002×10-8 m Ω |
Superconducting Point | N/A |
Magnetic properties |
Magnetic Type | Paramagnetic |
Curie Point | N/A |
Mass Magnetic Susceptibility | 6.7×10-9 m3/Kg |
Molar Magnetic Susceptibility | 2.62×10-10 m3/mol |
Volume Magnetic Susceptibility | 5.74×10-6 |
Abundances |
% in Universe | 0.0003% |
% in Sun | 0.0004% |
% in Meteorites | 0.07% |
% in Earth's Crust | 1.5% |
% in Oceans | 0.042% |
% in Humans | 0.2% |
Atomic dimensions and structure |
Atomic Radius | 243 pm |
Covalent Radius | 203 pm |
Van der Waals Radius | 275 pm |
Crystal Structure | Body-centered Cubic |
Lattice Angles | |
Lattice Constants | |
Space Group Name | Im_
3m |
Space Group Number | 229 |
Nuclear Properties |
Half-Life | Stable |
Lifetime | Stable |
Decay Mode | N/A |
Quantum Numbers | 2S1/2 |
Neutron Cross Section | 2.1 |
Neutron Mass Absorption | 0.0018 |
Known Isotopes | 32K, 33K, 34K, 35K, 36K, 37K, 38K, 39K, 40K, 41K, 42K, 43K, 44K, 45K, 46K, 47K, 48K, 49K, 50K, 51K, 52K, 53K, 54K, 55K |
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Stable Isotopes | |
Isotopic Abundances | |
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