
Cadmium (Cd) is a chemical element of the periodic table, located in the group 12 and the period 5, and is having the atomic number 48. It is a soft, lustrous, malleable, silvery-white post transition metal, whose name comes from the Latin word “cadmia”, which means the mineral calamine.
1 |
2 |
||||||||||||||||||
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
||||||||||||
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
||||||||||||
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
||
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
||
55 |
56 |
72 |
73 |
74 |
75 |
76 |
77 |
78 |
79 |
80 |
81 |
82 |
83 |
84 |
85 |
86 |
|||
87 |
88 |
104 |
105 |
106 |
107 |
108 |
109 |
110 |
111 |
112 |
113 |
114 |
115 |
116 |
117 |
118 |
|||
57 |
58 |
59 |
60 |
61 |
62 |
63 |
64 |
65 |
66 |
67 |
68 |
69 |
70 |
71 |
|||||
89 |
90 |
91 |
92 |
93 |
94 |
95 |
96 |
97 |
98 |
99 |
100 |
101 |
102 |
103 |
– d block |
FAQs on Cadmium Element
Cadmium |
---|
‣ What does cadmium look like? Appearance: silvery bluish-gray metallic |
‣ Who discovered cadmium? When was cadmium discovered? Discovery and first isolation: Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817) Named by: Friedrich Stromeyer (1817) |
‣ What row is cadmium in on the periodic table?![]() Location: Cadmium is found in the fifth row of the periodic table below the zinc element. |
‣ What is cadmium’s atomic number? Atomic number (Z): 48 |
‣ What is the symbol for cadmium? Symbol: Cd |
‣ Cadmium atomic weight: 112.414 |
‣ What block does cadmium belong to? Block: d-block |
‣ What group is cadmium in on the periodic table? Group: 12 |
‣ What period is cadmium in on the periodic table? Period: 5 |
‣ Cadmium atomic radius: empirical: 151 pm |
‣ Cadmium covalent radius: 144±9 pm |
‣ Cadmium Van der Waals radius: 158 pm |
‣ What is the melting point of cadmium? Melting point: 594.22 K (321.07 °C, 609.93 °F) |
‣ What is the boiling point of cadmium? Boiling point: 1040 K (767 °C, 1413 °F) |
‣ How many electron shells does cadmium have? Electrons per shell: 2, 8, 18, 18, 2 |
‣ What is the electron configuration for cadmium? Electron configuration: [Kr] 4d10 5s2 |
‣ Cadmium ionization energies: 1st: 867.8 kJ/mol 2nd: 1631.4 kJ/mol 3rd: 3616 kJ/mol |
‣ What is the phase of the cadmium? Phase (at r.t): solid |
‣ What is the density of cadmium? Density (near r.t): 8.65 g/cm3 when liquid (at m.p): 7.996 g/cm3 |
‣ Cadmium magnetic ordering: diamagnetic |
‣ Cadmium natural occurrence: primordial |
‣ Cadmium oxidation state: +2 |
‣ What’s the electronegativity of cadmium? Electronegativity: Pauling scale: 1.69 |
‣ Cadmium poisson’s ratio: 0.30 |
‣ Cadmium heat of fusion: 6.21 kJ/mol |
‣ Cadmium heat of vaporization: 99.87 kJ/mol |
‣ Cadmium molar heat capacity: 26.020 J/(mol K) |
‣ Cadmium molar magnetic susceptibility: -19.8 × 10-6 cm3/mol (298 K) |
‣ Speed of sound in cadmium: 2310 m/s (at 20 °C) |
‣ Cadmium crystal structure: hexagonal close-packed (hcp) |
‣ Thermal expansion of cadmium: 30.8 µm/(m.K) (at 25 °C) |
‣ Thermal conductivity of cadmium: 96.6 W/(m.K) |
‣ Cadmium electrical resistivity: 72.7 nΩ.m (at 22 °C) |
‣ Cadmium hardness Mohs hardness: 2.0 Brinell hardness: 203-220 MPa |
‣ Young’s modulus of cadmium: 50 GPa |
‣ Shear modulus of cadmium: 19 GPa |
‣ Bulk modulus of cadmium: 42 GPa |
‣ Cadmium CAS number: 7440-43-9 |
‣ Cadmium vapor pressure
Vapor pressure | ||||||
---|---|---|---|---|---|---|
P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
at T (K) | 530 | 583 | 654 | 745 | 867 | 1040 |
‣ How many isotopes does cadmium have?
Main isotopes of cadmium | ||||
---|---|---|---|---|
Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
106Cd | 1.25 % | stable | ||
107Cd | syn | 6.5 h | ε | 107Ag |
108Cd | 0.89 % | stable | ||
109Cd | syn | 462.6 d | ε | 109Ag |
110Cd | 12.47 % | stable | ||
111Cd | 12.80 % | stable | ||
112Cd | 24.11 % | stable | ||
113Cd | 12.23 % | 7.7 × 1015 y | β– | 113In |
113Cd | syn | 14.1 y | β– IT | 113In 113Cd |
114Cd | 28.75 % | stable | ||
115Cd | syn | 53.46 h | β– | 115In |
116Cd | 7.51 % | 3.1 × 1019 y | β–β– | 116Sn |
.
.
.
Related:
Also Read:
- Hydrogen
- Helium
- Lithium
- Beryllium
- Boron
- Carbon
- Nitrogen
- Oxygen
- Fluorine
- Neon
- Sodium
- Magnesium
- Aluminium
- Silicon
- Phosphorus
- Sulfur
- Chlorine
- Argon
- Potassium
- Calcium
- Scandium
- Titanium
- Vanadium
- Chromium
- Manganese
- Iron
- Cobalt
- Nickel
- Copper
- Zinc
- Gallium
- Germanium
- Arsenic
- Selenium
- Bromine
- Krypton
- Rubidium
- Strontium
- Yttrium
- Zirconium
- Niobium
- Molybdenum
- Technetium
- Ruthenium
- Rhodium
- Palladium
- Silver
- Indium
- Tin
- Antimony
- Tellurium
- Iodine
- Xenon
- Caesium
- Barium
- Lanthanum
- Cerium
- Praseodymium
- Neodymium
- Promethium
- Samarium
- Europium
- Gadolinium
- Terbium
- Dysprosium
- Holmium
- Erbium
- Thulium
- Ytterbium
- Lutetium
- Hafnium
- Tantalum
- Tungsten
- Rhenium
- Osmium
- Iridium
- Platinum
- Gold
- Mercury
- Thallium
- Lead
- Bismuth
- Polonium
- Astatine
- Radon
- Francium
- Radium
- Actinium
- Thorium
- Protactinium
- Uranium
- Neptunium
- Plutonium
- Americium
- Curium
- Berkelium
- Californium
- Einsteinium
- Fermium
- Mendelevium
- Nobelium
- Lawrencium
- Rutherfordium
- Dubnium
- Seaborgium
- Bohrium
- Hassium
- Meitnerium
- Darmstadtium
- Roentgenium
- Copernicium
- Nihonium
- Flerovium
- Moscovium
- Livermorium
- Tennessine
- Oganesson