ମୁଖ୍ୟ ସୂଚୀ ଦେଖିବେ

କ୍ୟାଡ଼ମିଅମ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Cdପରମାଣୁ କ୍ରମାଙ୍କ ୪୮ ଅଟେ ।

Cadmium,  48Cd
Cadmium-crystal bar.jpg
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକcadmium, Cd
Appearancesilvery bluish-gray metallic
ଉଚ୍ଚାରଣ /ˈkædmiəm/ KAD-mee-əm
Cadmium in the periodic table
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (other non-metal)
Bromine (halogen)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
Zn

Cd

Hg
silvercadmiumindium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)48
ଶ୍ରେଣୀ, ବ୍ଳକgroup 12, d-block
ପର୍ଯ୍ୟାୟperiod 5
ମୌଳିକ ପ୍ରକାର  transition metal, Alternatively considered a post-transition metal
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)112.411
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Kr] 5s2 4d10
per shell
2, 8, 18, 18, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାsolid
ଗଳନାଙ୍କ594.22 K ​(321.07 °C, ​609.93 °F)
ସ୍ଫୁଟନାଙ୍କ1040 K ​(767 °C, ​1413 °F)
Density near r.t.8.65 g/cm3
when liquid, at m.p.7.996 g/cm3
Heat of fusion6.21 kJ/mol
Heat of 99.87 kJ/mol
Molar heat capacity26.020 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 530 583 654 745 867 1040
Atomic properties
Oxidation states2, 1 (mildly basic oxide)
ElectronegativityPauling scale: 1.69
Atomic radiusempirical: 151 pm
Covalent radius144±9 pm
Van der Waals radius158 pm
Miscellanea
Crystal structurehexagonal close-packed (hcp)
Hexagonal close packed crystal structure for cadmium
Speed of sound thin rod2310 m/s (at 20 °C)
Thermal expansion30.8 µm/(m·K) (at 25 °C)
Thermal conductivity96.6 W/(m·K)
Electrical resistivity(22 °C) 72.7 n Ω·m
Magnetic orderingdiamagnetic[୧]
Young's modulus50 GPa
Shear modulus19 GPa
Bulk modulus42 GPa
Poisson ratio0.30
Mohs hardness2.0
Brinell hardness203 MPa
CAS Number7440-43-9
ଇତିହାସ
ଆବିଷ୍କାରKarl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
First isolationKarl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
Named byFriedrich Stromeyer (1817)
Most stable isotopes of cadmium
iso NA half-life DM DE (MeV) DP
106Cd 1.25% >4.1×1020 y β+β+ 2.770 106Pd
107Cd syn 6.5 h ε 1.417 107Ag
108Cd 0.89% >4.1×1017 y β+β+ 0.272 108Pd
109Cd syn 462.6 d ε 0.214 109Ag
110Cd 12.49% 110Cd is stable with 62 neutrons
111Cd 12.8% 111Cd is stable with 63 neutrons
112Cd 24.13% 112Cd is stable with 64 neutrons
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% >6.4×1018 y ββ 0.540 114Sn
115Cd syn 53.46 h β 1.446 115In
116Cd 7.49% 3.1×1019 y ββ 2.809 116Sn
| references

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ଆଧାରସମ୍ପାଦନ କରନ୍ତୁ

  1. 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. URL–wikilink conflict (help)

ଆହୁରି ପଢନ୍ତୁସମ୍ପାଦନ କରନ୍ତୁ

Hartwig, Andrea (2013). "Chapter 15. Cadmium and cancer". In Astrid Sigel, Helmut Sigel and Roland K. O. Sigel (ed.). Cadmium: From Toxicology to Essentiality. Metal Ions in Life Sciences. 11. Springer. pp. 491–507. doi:10.1007/978-94-007-5179-8_15.

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