×

Radium
Radium

francium
francium



ADD
Compare
X
Radium
X
francium

Periodic Table van Radium en francium

Add ⊕

Periodiek systeem

Symbool

Ra
Fr

Group Number

21
0 17
👆🏻

periode Aantal

77
2 7
👆🏻

Blok

s block
s block

element Family

aardalkali-
Alkali

CAS-nummer

74401447440735
7429905 54386242
👆🏻

Space Group Name

Im_ 3m
-

Space Group Number

229,00225,00
11 276
👆🏻