Bk

Beryllium

Zosankha 97 · 247.07031 u

Actinide f-block Mphindi 7 M'gululi pa RT Radioactive t½ 1,380 years Sintetiki Wikipedia →

Berkelium amapangidwa mu zigawo zochepa kuti azigwira ntchito ngati zinthu zofunikira popanga zinthu zoyipa.

Zochita za Fiziki

Mafuta247.07031 u
Kuwala14.79 g/cm³
Kutentha1259.0 K
Kutentha2900.0 K
KuonekaSilvery metallic
State at Room TempM'gululi

Makhalidwe a Chemical

Electronegativity1.3 (Pauling)
1st Ionization Energy601.0 kJ/mol
Electron Affinity-165.24 kJ/mol
Oxygen+3, +4

Zosankha

Kusintha kwa ma electron[Rn] 5f9 7s2
Atomic radius170.0 pm
Kuwala kwa Van der Waals244.0 pm

Kupeza

Kupezeka ndiStanley G. Thompson, Albert Ghiorso, Glenn T. Seaborg
Kuzindikira chaka1949
MaloBerkeley, California, United States
Analimbikitsidwa ndiBerkeley, California

Za ine Beryllium

Berkelium ndi wolimba, silvery-wobiriwira radioactive actinide.It anagwiritsa ntchito monga target zinthu kuti ateteze chinthu 117 (tennessine).

Kugwiritsa ntchito & Maphunziro

Makampani opanga zinthu zofunikira kwambiri komanso zofufuzira zasayansi.

Fun Facts

In 2009, ophunzira anapanga 22 milligrams ya berkelium-249 m'masiku 250 kuti apange chinthu 117.

Isotopes

Kukula kwa maselo Kuchuluka Half-Life Wolimba
247 - 1,380 years Si
249 - 330 days Si

Kusintha kwa ma electron

[Rn] 5f9 7s2

Kuyerekezera

Kuyerekezera ndi zina zinthu

Kutsegula Zomwe Zimafananiza
← Curium Kubwerera ku tabula Californium →