କ୍ୟାଡ଼ମିଅମ

ଉଇକିପିଡ଼ିଆ ରୁ

| colspan=2 style="text-align: center" | Main article: Isotopes of cadmium

Cadmium
48Cd
Zn

Cd

Hg
silvercadmiumindium
ଭୌତିକ ରୁପ
silvery bluish-gray metallic
ସାଧାରଣ ଧର୍ମ
ନାମ, ପ୍ରତୀକ,
ପରମାଣୁ କ୍ରମାଙ୍କ
cadmium, Cd,
48
ଉଚ୍ଚାରଣ /ˈkædmiəm/ kad-mee-əm
ମୌଳିକ ପ୍ରକାର transition metal
Alternatively considered a post-transition metal
ଶ୍ରେଣୀ, ପର୍ଯ୍ୟାୟ, ବ୍ଲକ୍ 12, 5, d
ମାନକ ପରମାଣବିକ ଓଜନ 112.411
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ [Kr] 5s2 4d10
2, 8, 18, 18, 2
Electron shells of cadmium (2, 8, 18, 18, 2)
ଇତିହାସ
ଆବିଷ୍କାର Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
First isolation Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
ନାମକରଣ Friedrich Stromeyer (1817)
ଭୌତିକ ଧର୍ମ
ଅବସ୍ଥା solid
(ରୁମ୍ ଟେମ୍ପରେଚର୍‌ରେ ଘନତା) 8.65 g·cm−3
Liquid density at m.p. 7.996 g·cm−3
ଗଳନାଙ୍କ 594.22 K, 321.07 °C, 609.93 °F
ସ୍ଫୁଟନାଙ୍କ 1040 K, 767 °C, 1413 °F
Heat of fusion 6.21 kJ·mol−1
Heat of vaporization 99.87 kJ·mol−1
Molar heat capacity 26.020 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 530 583 654 745 867 1040
Atomic properties
Oxidation states 2, 1 (mildly basic oxide)
Electronegativity 1.69 (Pauling scale)
Ionization energies 1st: 867.8 kJ·mol−1
2nd: 1631.4 kJ·mol−1
3rd: 3616 kJ·mol−1
Atomic radius 151 pm
Covalent radius 144±9 pm
Van der Waals radius 158 pm
Miscellanea
Crystal structure hexagonal close-packed
Magnetic ordering diamagnetic[୧]
Electrical resistivity (22 °C) 72.7 nΩ·m
Thermal conductivity 96.6 W·m−1·K−1
Thermal expansion (25 °C) 30.8 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 2310 m·s−1
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 registry number 7440-43-9
Most stable isotopes
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
· r

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

ଧର୍ମ[ସମ୍ପାଦନା]

ଉପସ୍ଥିତି[ସମ୍ପାଦନା]

ଗଠନ[ସମ୍ପାଦନା]

ଉତ୍ପାଦନ[ସମ୍ପାଦନା]

ସମସ୍ଥାନିକ[ସମ୍ପାଦନା]

ବ୍ୟବହାର[ସମ୍ପାଦନା]

ଆଧାର[ସମ୍ପାଦନା]

ଆହୁରି ପଢନ୍ତୁ[ସମ୍ପାଦନା]

Hartwig, Andrea (2013). "Chapter 15. Cadmium and cancer". In Astrid Sigel, Helmut Sigel and Roland K. O. Sigel. 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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