Kadmio
48
Cd
Grupo
12
Perio
5
Bloko
d
Protonoj
Elektronoj
Neŭtronoj
48
48
64
Ĝeneralaj Propraĵoj
Atoma Nombro
48
Atommaso
112,411
Amasa Nombro
112
Kategorio
Transirmetaloj
Koloro
Arĝento
Radioaktiva
Ne
From the Latin word cadmia, Greek kadmeia - the ancient name for calamine, zinc carbonate
Kristala Strukturo
Simpla Sesangula
Historio
Cadmium was discovered by German chemist Friedrich Stromeyer in 1817 as an impurity in zinc carbonate.
Stromeyer noted that some impure samples of calamine (zinc carbonate) changed color when heated but pure calamine did not.
Cadmium was independently discovered by German chemist Karl Hermann in 1818.
Stromeyer noted that some impure samples of calamine (zinc carbonate) changed color when heated but pure calamine did not.
Cadmium was independently discovered by German chemist Karl Hermann in 1818.
Elektronoj per ŝelo
2, 8, 18, 18, 2
Elektrona Agordo
[Kr] 4d10 5s2
Cadmium is a soft metal which is easily cut with a knife
Fizikaj Propraĵoj
Fazo
Solido
Denso
8,69 g/cm3
Fandpunkto
594,22 K | 321,07 °C | 609,93 °F
Bolpunkto
1040,15 K | 767 °C | 1412,6 °F
Varmo de Fuzio
6,3 kJ/mol
Varmo de Vaporiĝo
100 kJ/mol
Specifa Varmo Kapacito
0,232 J/g·K
Krusta Abundo
0,000015%
Universa Abundo
2×10-7%
CAS Nombro
7440-43-9
PubChem Kunmetita Identiga Nombro
23973
Atomaj Propraĵoj
Atoma Radiuso
151 pm
Kovalenta Radiuso
144 pm
Elektronegativeco
1,69 (Pauling-skalo)
Potencialo de jonigo
8,9938 eV
Atoma Volumo
13,1 cm3/mol
Termika Kondukto
0,968 W/cm·K
Oksidaj Ŝtatoj
1, 2
Aplikoj
Cadmium is a key component in battery production.
It is also is used in electroplating.
Cadmium oxide is used in black and white television phosphors and in the blue and green phosphors for color television picture tubes.
Cadmium is used as a barrier to control neutrons in nuclear fission.
It is also is used in electroplating.
Cadmium oxide is used in black and white television phosphors and in the blue and green phosphors for color television picture tubes.
Cadmium is used as a barrier to control neutrons in nuclear fission.
Cadmium and its compounds are highly toxic
Izotopoj
Stabilaj Izotopoj
106Cd, 108Cd, 110Cd, 111Cd, 112Cd, 114CdMalstabilaj Isotopoj
95Cd, 96Cd, 97Cd, 98Cd, 99Cd, 100Cd, 101Cd, 102Cd, 103Cd, 104Cd, 105Cd, 107Cd, 109Cd, 113Cd, 115Cd, 116Cd, 117Cd, 118Cd, 119Cd, 120Cd, 121Cd, 122Cd, 123Cd, 124Cd, 125Cd, 126Cd, 127Cd, 128Cd, 129Cd, 130Cd, 131Cd, 132Cd