Eynshteyniy

99
Es
Guruh
Nomaʼlum
Davr
7
Block
f
Protonlar
Elektronlar
Neytronlar
99
99
153
General Properties
Atom raqami
99
Atom massasi
[252]
Mass Number
252
Turkum
Aktinoidlar
Ranggi
Nomaʼlum
Radioaktivlik
Ha
Named after Albert Einstein
Crystal Structure
Nomaʼlum
Tarix
Einsteinium was discovered as a component of the debris of the first hydrogen bomb explosion in 1952.

It was identified by Albert Ghiorso and co-workers at the University of California, Berkeley in collaboration with the Argonne and Los Alamos National Laboratories, in the fallout from the Ivy Mike nuclear test.

The new element was produced by the nuclear explosion in miniscule amounts by the addition of 15 neutrons to uranium-238.
Electrons per shell
2, 8, 18, 32, 29, 8, 2
Elektron konfiguratsiyasi
[Rn] 5f11 7s2
Es
Einsteinium is the first divalent metal in the actinide series
Physical Properties
Phase
Qattiq modda
Zichlik
8,84 g/cm3
Erish harorati
1133,15 K | 860 °C | 1580 °F
Qaynash harorati
-
Heat of Fusion
Nomaʼlum
Heat of Vaporization
Nomaʼlum
Solishtirma issiqlik sigʻimi
-
Abundance in Earth's crust
Nomaʼlum
Abundance in Universe
Nomaʼlum
Einsteinium
Image Credits: Wikimedia Commons (National Nuclear Security Administration)
Einsteinium was first observed in the fallout from the Ivy Mike nuclear test
CAS Number
7429-92-7
PubChem CID Number
Nomaʼlum
Atomic Properties
Atom radiusi
-
Kovalentlik radiusi
-
Elektrmanfiylik
1,3 (Poling boʻyicha)
Ionization Potential
6,42 eV
Molyar hajm
28,5 cm3/mol
Issiqlik oʻtkazuvchanlik
0,1 W/cm·K
Oksidlanish darajasi
2, 3
Applications
Einsteinium is mainly used for scientific research purposes.

The rare isotope einsteinium-254 is favored for production of ultraheavy elements.

Einsteinium-254 was used as the calibration marker in the chemical analysis spectrometer of the Surveyor 5 lunar probe.
Einsteinium is harmful due to its radioactivity
Izotoplar
Barqaror izotoplar
-
Beqaror izotoplar
240Es, 241Es, 242Es, 243Es, 244Es, 245Es, 246Es, 247Es, 248Es, 249Es, 250Es, 251Es, 252Es, 253Es, 254Es, 255Es, 256Es, 257Es, 258Es