Lawrensium
103
Lr
Golongan
n/a
Periode
7
Blok
d
Proton
Elektron
Neutron
103
103
159
Sifat Umum
Nomor atom
103
Massa atom
[262]
Nomor massa
262
Kategori
Aktinida
Warna
n/a
Radioaktif
Ya
Named after Ernest O. Lawrence, inventor of the cyclotron
Struktur kristal
n/a
Sejarah
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.
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 kulit
2, 8, 18, 32, 32, 8, 3
Konfigurasi elektron
[Rn] 5f14 7s2 7p1
Lawrencium is a trivalent ion in aqueous solution
Sifat Fisika
Fase
Solid
Kepadatan
-
Titik lebur
1900 K | 1626,85 °C | 2960,33 °F
Titik didih
-
Kalor peleburan
n/a
Kalor penguapan
n/a
Kapasitas kalor molar
-
Kelimpahan di kerak bumi
n/a
Kelimpahan di alam semesta
n/a
Nomor CAS
22537-19-5
Nomor PubChem CID
n/a
Sifat Atom
Jari-jari atom
-
Jari-jari kovalen
-
Elektronegativitas
1,3 (Skala Pauling)
Potensi Ionisasi
4,9 eV
Volume atom
-
Kondusivitas termal
0,1 W/cm·K
Bilangan oksidasi
3
Aplikasi
Lawrencium is used for scientific research purposes only.
Lawrencium is harmful due to its radioactivity
Isotop
Isotop stabil
-Isotop tidak stabil
251Lr, 252Lr, 253Lr, 254Lr, 255Lr, 256Lr, 257Lr, 258Lr, 259Lr, 260Lr, 261Lr, 262Lr, 263Lr, 264Lr, 265Lr, 266Lr