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Lanthanum
Lanthanum

Protactinium
Protactinium



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Lanthanum
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Protactinium

Lanthanum and Protactinium Periodic Table

Periodic Table

Symbol

La
Pa

Group Number

33
0 17
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Period Number

67
2 7
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Block

f block
f block

Element Family

Lanthanide
Actinide

CAS Number

74399107440133
7429905 54386242
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Space Group Name

P63/mmc
I4/mmm

Space Group Number

194.00139.00
11 276
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