Lawrencium

103
Lr
Gruppe
n/a
Periode
7
Blokk
d
Protons
Electrons
Neutrons
103
103
159
Generelle eigenskapar
Atomnummer
103
Atommasse
[262]
Mass Number
262
Kategori
Aktinid
Farge
n/a
Radioactive
Ja
Named after Ernest O. Lawrence, inventor of the cyclotron
Krystallstruktur
n/a
Historie
Lawrencium was discovered by Albert Ghiorso, Torbjørn Sikkeland, Almon Larsh and Robert M. Latimer in 1961 at the University of California, Berkeley.

It was produced by the bombardment of californium with boron atoms.

Lawrencium was the last member of the actinide series to be discovered.
Elektron per energinivå
2, 8, 18, 32, 32, 8, 3
Elektronkonfigurasjon
[Rn] 5f14 7s2 7p1
Lr
Lawrencium is a trivalent ion in aqueous solution
Fysiske eigenskapar
Tilstandsform
Fast stoff
Tettleik
-
Smeltepunkt
1900 K | 1626,85 °C | 2960,33 °F
Kokepunkt
-
Smeltevarme
n/a
Fordampingsvarme
n/a
Spesifikk varmekapasitet
-
Abundance in Earth's crust
n/a
Abundance in Universe
n/a
Illustration
Image Credits: Images-of-elements
Illustration of lawrencium
CAS Number
22537-19-5
PubChem CID Number
n/a
Atom eigenskapar
Atomradius
-
Kovalent radius
-
Elektronegativitet
1,3 (Paulings skala)
Ioniseringspotensial
4,9 eV
Molart volum
-
Termisk konduktivitet
0,1 W/cm·K
Oksidasjonstrinn
3
Applications
Lawrencium is used for scientific research purposes only.
Lawrencium is harmful due to its radioactivity
Isotopes
Stable Isotopes
-
Unstable Isotopes
251Lr, 252Lr, 253Lr, 254Lr, 255Lr, 256Lr, 257Lr, 258Lr, 259Lr, 260Lr, 261Lr, 262Lr, 263Lr, 264Lr, 265Lr, 266Lr