మూస:బెర్కీలియం మూలకము
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త్వరిత వాస్తవాలు Berkelium, Pronunciation ...
Berkelium | |
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Pronunciation |
|
Appearance | silvery |
Mass number | [247] |
Berkelium in the periodic table | |
Group | మూస:Infobox element/symbol-to-group/format |
Period | period 7 |
Block | f-block |
Electron configuration | [Rn] 5f9 7s2 |
Electrons per shell | 2, 8, 18, 32, 27, 8, 2 |
Physical properties | |
Phase at STP | solid |
Melting point | beta: 1259 K (986 °C, 1807 °F) |
Boiling point | beta: 2900 K (2627 °C, 4760 °F) |
Density (near r.t.) | alpha: 14.78 g/cm3 beta: 13.25 g/cm3 |
Atomic properties | |
Oxidation states | +2, +3, +4, +5[1] |
Electronegativity | Pauling scale: 1.3 |
Ionization energies |
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Atomic radius | empirical: 170 pm |
Spectral lines of berkelium | |
Other properties | |
Natural occurrence | synthetic |
Crystal structure | hexagonal close-packed (hcp) |
Thermal conductivity | 10 W/(m⋅K) |
Magnetic ordering | paramagnetic |
CAS Number | 7440-40-6 |
History | |
Naming | after Berkeley, California, where it was discovered |
Discovery | Lawrence Berkeley National Laboratory (1949) |
Isotopes of berkelium
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Template:infobox berkelium isotopes does not exist | |
Category: Berkelium | references |
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