Potassium By Davy, Sir Humphry (1807) | |||||||
| NO ATOM 19 |
NAMA Potassium |
SIMBOL K |
BOBOT ATOM 39.0983 |
BENTUK Solid |
TIPE Alkali Metal |
GRUP 1 |
GRUP LAMA IA |
| PERIOD 4 |
ELEKTRON CONFIG [Ar] 4s1 |
GROUND LEVEL 2S1/2 |
ENERGI IONISASI 4.3407 |
TITIK LELEH 63.38 |
TITIK DIDIH 759 |
STRUKTUR KRISTAL BCC |
Atomic Radius (display) (m) 227 |
| Metallic Radius (pm) 227 |
Covalent radius (pm) 196 |
Atomic Radius (calculated) (pm) 243 |
Van der Waals Radius, (pm) 275 |
Electro-negativity (Pauling) 0.82 |
Density (g/cm3) 0.856 |
Electron Affinity (kJ/mol) 48.4 |
Thermal Conductivity, W/(m K) 100 |
| Electrical Resistivity (Ωm) 0.00000007 |
CAS NO CAS7440-09-7 |
OXIDASI STATE +1 |
PENEMU Davy, Sir Humphry |
TAHUN 1807 |
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