Mendelevij
101
Md
Skupina
n/p
Perioda
7
Blok
f
Protoni
Elektroni
Nevtroni
101
101
157
Splošne lastnosti
Vrstno število
101
Atomska teža
[258]
Masno število
258
Kategorija
Aktinoidi
Barva
n/p
Radioaktivno
Da
Named after Dmitri Mendeleev, who created the Periodic Table
Kristalna struktura
n/p
Zgodovina
Mendelevium was discovered by Albert Ghiorso, Glenn T. Seaborg, Gregory R. Choppin, Bernard G. Harvey and Stanley G. Thompson in 1955 at the University of California, Berkeley.
It was produced by the bombardment of einsteinium with helium.
Mendelevium was identified by chemical analysis in an ion exchange experiment.
It was produced by the bombardment of einsteinium with helium.
Mendelevium was identified by chemical analysis in an ion exchange experiment.
Elektroni po lupinah
2, 8, 18, 32, 31, 8, 2
Razporeditev elektronov
[Rn] 5f13 7s2
Mendelevium was the first element to be produced one atom at a time
Fizikalne lastnosti
Faza snovi
Trdnina
Gostota
- g/cm3
Tališče
1100 K | 826,85 °C | 1520,33 °F
Vrelišče
-
Talilna toplota
n/p kJ/mol
Izparilna toplota
n/p kJ/mol
Toplotna kapaciteta
- J/g·K
Zastopanost v Zemljini skorji
n/p
Zastopanost v vesolju
n/p
Zasluge za slike: Wikimedia Commons (Serge Lachinov)
The element is named to honor Dmitri Mendeleev, the developer of the periodic table of elements
CAS številka
7440-11-1
PubChem CID številka
n/p
Atomske lastnosti
Atomski polmer
-
Kovalentni polmer
-
Elektronegativnost
1,3 (Paulingova lestvica)
Ionizacijski potencial
6,58 eV
Atomski volumen
-
Toplotna prevodnost
0,1 W/cm·K
Oksidacijska stanja
2, 3
Uporabe
Mendelevium is used for scientific research purposes only.
Mendelevium is harmful due to its radioactivity
Izotopi
Stabilni izotopi
-Nestabilni izotopi
245Md, 246Md, 247Md, 248Md, 249Md, 250Md, 251Md, 252Md, 253Md, 254Md, 255Md, 256Md, 257Md, 258Md, 259Md, 260Md, 261Md, 262Md