Berkelium

ACTINOID · GROUP None · PERIOD 7

Berkelium

247

Atomic Data

[Rn] 5f⁹ 7s²

Shell	n	Subshell	Electrons	Cumulative
K	1	1s	2	2
L	2	2s	2	4
L	2	2p	6	10
M	3	3s	2	12
M	3	3p	6	18
M	3	3d	10	28
N	4	4s	2	30
N	4	4p	6	36
N	4	4d	10	46
N	4	4f	14	60
O	5	5s	2	62
O	5	5p	6	68
O	5	5d	10	78
O	5	5f	9	87
P	6	6s	2	89
P	6	6p	6	95
Q	7	7s	2	97
Total			97	97

Berkelium has two naturally occurring stable isotopes. The most abundant is ²⁴⁷Bk, comprising None% of all naturally occurring Berkelium.

Isotope	Symbol	Protons	Neutrons	Abundance	Stability
Berkelium-247	²⁴⁷Bk	97	150	trace	Stable
Berkelium-249	²⁴⁹Bk	97	152	trace	Stable

Berkelium is present in Earth's crust at approximately trace amounts by mass and at approximately trace amounts by mass throughout the universe.

Berkelium

None ppm

Silicon (ref.)

277,000 ppm

Oxygen (ref.)

461,000 ppm

Berkelium

None ppm

Helium (ref.)

230,000 ppm

Hydrogen (ref.)

739,000 ppm

Free periodic table reference sheets for classrooms, study sessions, and laboratory use.

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