మూస:Infobox cadmium

కాడ్మియం, ₀₀Cd
కాడ్మియం
Pronunciation	/ˈkædmiəm/ (KAD-mee-əm)
Appearance	silvery bluish-gray metallic
Standard atomic weight Ar°(Cd)
	112.414±0.004; 112.41±0.01 (abridged);
కాడ్మియం in the periodic table
	వెండి ← కాడ్మియం → ఇండియం
Group	మూస:Infobox element/symbol-to-group/format
Period	period 5
Block	d-block
Electron configuration	[Kr] 4d10 5s2
Electrons per shell	2, 8, 18, 18, 2
Physical properties
Phase at STP	solid
Melting point	594.22 K (321.07 °C, 609.93 °F)
Boiling point	1040 K (767 °C, 1413 °F)
Density (near r.t.)	8.65 g/cm3
when liquid (at m.p.)	7.996 g/cm3
Heat of fusion	6.21 kJ/mol
Heat of vaporization	99.87 kJ/mol
Molar heat capacity	26.020 J/(mol·K)
Atomic properties
Oxidation states	−2, +1, +2 (a mildly basic oxide)
Electronegativity	Pauling scale: 1.69
Atomic radius	empirical: 151 pm
Covalent radius	144±9 pm
Van der Waals radius	158 pm
	Spectral lines of కాడ్మియం
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal close-packed (hcp)
Speed of sound thin rod	2310 m/s (at 20 °C)
Thermal expansion	30.8 µm/(m⋅K) (at 25 °C)
Thermal conductivity	96.6 W/(m⋅K)
Electrical resistivity	(22 °C) 72.7 n Ω⋅m
Magnetic ordering	diamagnetic
Young's modulus	50 GPa
Shear modulus	19 GPa
Bulk modulus	42 GPa
Poisson ratio	0.30
Mohs hardness	2.0
Brinell hardness	203 MPa
CAS Number	7440-43-9
History
Discovery	Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
First isolation	Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
Named by	Friedrich Stromeyer (1817)
Isotopes of కాడ్మియం v; e;
	Template:infobox కాడ్మియం isotopes does not exist
	Category: కాడ్మియం; view; talk; edit; \| references

References

↑ "Standard Atomic Weights: Cadmium". CIAAW. 2013.
↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
↑ Lide, D. R., ed. (2000). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (81st ed.). CRC Press. ISBN 978-0-8493-0481-1.

[1] "Standard Atomic Weights: Cadmium". CIAAW. 2013.

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[3] Lide, D. R., ed. (2000). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (81st ed.). CRC Press. ISBN 978-0-8493-0481-1.

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