×

Protactinium
Protactinium

Promethium
Promethium



ADD
Compare
X
Protactinium
X
Promethium

Periodic Table van Protactinium en Promethium

Periodiek systeem

Symbool

Pa
Pm

Group Number

33
0 17
👆🏻

periode Aantal

76
2 7
👆🏻

Blok

f block
f block

element Family

actinide
lanthanide

CAS-nummer

74401337440122
7429905 54386242
👆🏻

Space Group Name

I4 / mmm
-

Space Group Number

139,00194,00
11 276
👆🏻