Mendelevium
101
Md
Gruppe
n/a
Periode
7
Blokk
f
Protons
Electrons
Neutrons
101
101
157
Generelle eigenskapar
Atomnummer
101
Atommasse
[258]
Mass Number
258
Kategori
Aktinid
Farge
n/a
Radioactive
Ja
Named after Dmitri Mendeleev, who created the Periodic Table
Krystallstruktur
n/a
Historie
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.
Elektron per energinivå
2, 8, 18, 32, 31, 8, 2
Elektronkonfigurasjon
[Rn] 5f13 7s2
Mendelevium was the first element to be produced one atom at a time
Fysiske eigenskapar
Tilstandsform
Fast stoff
Tettleik
-
Smeltepunkt
1100 K | 826,85 °C | 1520,33 °F
Kokepunkt
-
Smeltevarme
n/a
Fordampingsvarme
n/a
Spesifikk varmekapasitet
-
Abundance in Earth's crust
n/a
Abundance in Universe
n/a
Image Credits: Wikimedia Commons (Serge Lachinov)
The element is named to honor Dmitri Mendeleev, the developer of the periodic table of elements
CAS Number
7440-11-1
PubChem CID Number
n/a
Atom eigenskapar
Atomradius
-
Kovalent radius
-
Elektronegativitet
1,3 (Paulings skala)
Ioniseringspotensial
6,58 eV
Molart volum
-
Termisk konduktivitet
0,1 W/cm·K
Oksidasjonstrinn
2, 3
Applications
Mendelevium is used for scientific research purposes only.
Mendelevium is harmful due to its radioactivity
Isotopes
Stable Isotopes
-Unstable Isotopes
245Md, 246Md, 247Md, 248Md, 249Md, 250Md, 251Md, 252Md, 253Md, 254Md, 255Md, 256Md, 257Md, 258Md, 259Md, 260Md, 261Md, 262Md