Potassium Properties

     

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