ଇଟ୍ରିଅମ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Y ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୩୯ ।
Quick facts ସାଧାରଣ ଗୁଣ, ନାମ, ପ୍ରତୀକ ...
Yttrium, 39Y |
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ନାମ, ପ୍ରତୀକ | yttrium, Y |
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Appearance | silvery white |
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ଉଚ୍ଚାରଣ | IT-ree-əm |
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Sc ↑ Y ↓ Lu |
strontium ← yttrium → zirconium |
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ପରମାଣୁ କ୍ରମାଙ୍କ (Z) | 39 |
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ଶ୍ରେଣୀ, ବ୍ଳକ | group 3, d-block |
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ପର୍ଯ୍ୟାୟ | period 5 |
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ମୌଳିକ ପ୍ରକାର | transition metal |
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ମାନକ ପରମାଣବିକ ଓଜନ (Ar) | 88.90585 |
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ଇଲେକ୍ଟ୍ରୋନ୍ ବିନ୍ୟାସ | [Kr] 4d1 5s2 |
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per shell | 2, 8, 18, 9, 2 |
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ଅବସ୍ଥା | solid |
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ଗଳନାଙ୍କ | 1799 K (1526 °C, 2779 °F) |
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ସ୍ଫୁଟନାଙ୍କ | 3609 K (3336 °C, 6037 °F) |
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Density near r.t. | 4.472 g/cm3 |
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when liquid, at m.p. | 4.24 g/cm3 |
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Heat of fusion | 11.42 kJ/mol |
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Heat of | 365 kJ/mol |
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Molar heat capacity | 26.53 J/(mol·K) |
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pressure
P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
at T (K) |
1883 |
2075 |
(2320) |
(2627) |
(3036) |
(3607) |
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Oxidation states | 3, 2, 1 (weakly basic oxide) |
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Electronegativity | Pauling scale: 1.22 |
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Atomic radius | empirical: 180 pm |
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Covalent radius | 190±7 pm |
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Crystal structure | hexagonal close-packed (hcp) |
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Speed of sound thin rod | 3300 m/s (at 20 °C) |
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Thermal expansion | (r.t.) (α, poly) 10.6 µm/(m·K) |
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Thermal conductivity | 17.2 W/(m·K) |
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Electrical resistivity | (r.t.) (α, poly) 596 n Ω·m |
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Magnetic ordering | paramagnetic[୧] |
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Young's modulus | 63.5 GPa |
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Shear modulus | 25.6 GPa |
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Bulk modulus | 41.2 GPa |
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Poisson ratio | 0.243 |
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Brinell hardness | 589 MPa |
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CAS Number | 7440-65-5 |
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ଆବିଷ୍କାର | Johan Gadolin (1794) |
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First isolation | Carl Gustav Mosander (1840) |
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iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
87Y |
syn |
3.35 d |
ε |
- |
87Sr |
γ |
0.48, 0.38D |
- |
88Y |
syn |
106.6 d |
ε |
- |
88Sr |
γ |
1.83, 0.89 |
- |
89Y |
100% |
89Y is stable with 50 neutrons |
90Y |
syn |
2.67 d |
β− |
2.28 |
90Zr |
γ |
2.18 |
- |
91Y |
syn |
58.5 d |
β− |
1.54 |
91Zr |
γ |
1.20 |
- |
|
| references |
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