Kadmiyum
48
Cd
Grup
12
Periyot
5
Blok
d
Protonlar
Elektronlar
Nötronlar
48
48
64
Temel Özellikleri
Atom numarası
48
Atom ağırlığı
112,411
Kütle Numarası
112
Kategori
Geçiş metalleri
Renk
Gümüşi
Radyoaktif
Hayir
From the Latin word cadmia, Greek kadmeia - the ancient name for calamine, zinc carbonate
Kristal yapısı
Basit altıgen
Tarihi
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.
Enerji seviyesi başına Elektronlar
2, 8, 18, 18, 2
Elektron dizilimi
[Kr] 4d10 5s2
Cadmium is a soft metal which is easily cut with a knife
Fiziksel Özellikleri
Faz
Katı
Yoğunluk
8,69 g/cm3
Ergime noktası
594,22 K | 321,07 °C | 609,93 °F
Kaynama noktası
1040,15 K | 767 °C | 1412,6 °F
Ergime ısısı
6,3 kJ/mol
Buharlaşma ısısı
100 kJ/mol
Isı kapasitesi
0,232 J/g·K
Dünya kabuğundaki bulunulabilirliği
0,000015%
Evrendeki bulunulabilirliği
2×10-7%
CAS Numarası
7440-43-9
PubChem CID Numarası
23973
Atom Özellikleri
Atom yarıçapı
151 pm
Kovalent yarıçapı
144 pm
Elektronegatifliği
1,69 (Pauling ölçeği)
İyonlaşma enerjisi
8,9938 eV
Atomik Hacim
13,1 cm3/mol
Isıl iletkenlik
0,968 W/cm·K
Yükseltgenme seviyeleri
1, 2
Uygulamalar
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
İzotoplar
Kararlı izotoplar
106Cd, 108Cd, 110Cd, 111Cd, 112Cd, 114CdKararsız izotoplar
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