Ang einsteinyo (Iningles einsteinium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Es ug kaiphan nga atomik 99. Ang einsteinyo mao ang aktinido.
Quick Facts Einsteinium, Panagway ...
| Einsteinium |
|---|
99Es |
|
|
| Panagway |
silver-colored
 |
| Kinatibuk-ang mga kinaiya |
| Ngalan, simbolo, kaiphan |
einsteinium, Es, 99 |
| Paglitok |
[[Help:Pronunciation respelling key|eyen-Plantilya:Smallcaps all-nee-əm]] |
| Kategoriyang elemento |
aktinido |
| Group, period, block |
[[group {{{group}}} element|{{{group}}}]], 7, f |
| Gibug-aton sa atomo |
(252) |
| Kontorno sa elektron |
[Rn] 5f11 7s2
2, 8, 18, 32, 29, 8, 2
 Electron shells of einsteinium (2, 8, 18, 32, 29, 8, 2) |
| History |
| Pagkadiskobre |
Lawrence Berkeley National Laboratory (1952) |
| Physical properties |
| Phase |
magahi |
| Density (near r.t.) |
8.84 g·cm−3 |
| Melting point |
1133 K, 860 °C, 1580 °F |
| Atomic properties |
| Oxidation states |
2, 3, 4 |
| Electronegativity |
1.3 (Pauling scale) |
| Ionization energies |
1st: 619 kJ·mol−1 |
| Miscellanea |
| Crystal structure |
face-centered cubic
|
| Magnetic ordering |
paramagnetic |
| CAS registry number |
7429-92-7 |
| Most stable isotopes |
| Main article: Isotopes of einsteinium |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
|---|
| 252Es |
syn |
471.7 d |
α |
6.760 |
248Bk |
| ε |
1.260 |
252Cf |
| β− |
0.480 |
252Fm |
| 253Es |
syn |
20.47 d |
SF |
- |
- |
| α |
6.739 |
249Bk |
| 254Es |
syn |
275.7 d |
ε |
0.654 |
254Cf |
| β− |
1.090 |
254Fm |
| α |
6.628 |
250Bk |
| 255Es |
syn |
39.8 d |
β− |
0.288 |
255Fm |
| α |
6.436 |
251Bk |
| SF |
- |
- |
|
| · r |
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