Kadmium

48 silver ← cadmium → indium Zn ↑ Cd ↓ Hg Tabel périodik
Katrangan Umum Unsur
Jeneng, Lambang, Nomer atom	cadmium, Cd, 48
Dhèrèt kimia	transition metals
Golongan, Période, Blok	12, 5, d
Panampilan	silvery gray metallic
Massa atom	112.411(8) g/mol
Konfigurasi elektron	[Kr] 5s2 4d10
Cacahing èlèktron saben kulit	2, 8, 18, 18, 2
Ciri-ciri fisik
Fase	solid
Massa jenis (watara suhu kamar)	8.65 g/cm³
Massa jenis cair ing titik lebur	7.996 g/cm³
Titik lebur	594.22 K (321.07 °C, 609.93 °F)
Titik umob	1040 K (767 °C, 1413 °F)
Kalor peleburan	6.21 kJ/mol
Kalor panguapan	99.87 kJ/mol
Kapasitas kalor	(25 °C) 26.020 J/(mol·K)
Tekanan uap P/Pa 1 10 100 1 k 10 k 100 k ing T/K 530 583 654 745 867 1040
Ciri-ciri atom
Struktur kristal	hexagonal
Bilangan oksidasi	2 (mildly basic oxide)
Elektronegativitas	1.69 (skala Pauling)
Energi ionisasi	pertama: 867.8 kJ/mol
	ke-2: 1631.4 kJ/mol
	ke-3: 3616 kJ/mol
Jari-jari atom	155 pm
Jari-jari atom (terhitung)	161 pm
Jari-jari kovalen	148 pm
Jari-jari Van der Waals	158 pm
Lain-lain
Sifat magnetik	no data
Resistivitas elektris	(22 °C) 72.7 nΩ·m
Konduktivitas termal	(300 K) 96.6 W/(m·K)
Ekspansi termal	(25 °C) 30.8 µm/(m·K)
Kecepatan suara (pada wujud kawat)	(20 °C) 2310 m/s
Modulus Young	50 GPa
Modulus rigiditas	19 GPa
Modulus ruah	42 GPa
Nisbah Poisson	0.30
Skala Mohs	2.0
Kekerasan Brinell	203 MPa
Nomor CAS	7440-43-9
Isotop
iso NA waktu paruh DM DE (MeV) DP 106Cd 1.25% >9.5×1017 y εε2ν - 106Pd 107Cd syn 6.5 h ε 1.417 107Ag 108Cd 0.89% >6.7×1017 y εε2ν - 108Pd 109Cd syn 462.6 d ε 0.214 109Ag 110Cd 12.49% Cd stabil kanthi 62 neutron 111Cd 12.8% Cd stabil kanthi 63 neutron 112Cd 24.13% Cd stabil kanthi 64 neutron 113Cd 12.22% 7.7×1015 y β- 0.316 113In 113mCd syn 14.1 y β- 0.580 113In IT 0.264 113Cd 114Cd 28.73% >9.3×1017 y ββ2ν - 114Sn 115Cd syn 53.46 h β- 1.446 115In 116Cd 7.49% 2.9×1019 y ββ2ν - 116Sn
Referensi

Cadmium (uniné /ˈkædmiəm/) kuwi sawijining unsur kimia kanthi simbul Cd lan nomer atom 48.

[sunting] Referensi

[sunting] Pranala njaba

Look up cadmium in Wiktionary, the free dictionary.

Mangga mriksani Kadmium ing Wikimedia Commons.

Cithakan:Wikisource1911Enc

• IARC Monograph "Cadmium and Cadmium Compounds"
• National Pollutant Inventory - Cadmium and compounds
• WebElements.com – Cadmium
• Los Alamos National Laboratory – Cadmium
• [1] Warning Moose and Deer Liver
• National Institute for Occupational Safety and Health - Cadmium Page