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Protactinium
Protactinium
☒

Neptunium
Neptunium
☒



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Protactinium
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Neptunium

Protactinium and Neptunium Periodic Table
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Periodic Table

Symbol

Pa
Np

Group Number

33
0 17
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Period Number

77
2 7
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Block

f block
f block

Element Family

Actinide
Actinide

CAS Number

74401337439998
7429905 54386242
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Space Group Name

I4/mmm
Pnma

Space Group Number

139.0062.00
11 276
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Compare Actinide Series » More

Actinide Series » More

Actinide Series » More

Americium Metal
Americium
Neptunium Electron Configuration
Neptunium
Actinium Metal
Actinium

Compare Actinide Series » More

Neptunium Electron Configuration
Mendelevium Electron Configuration
Neptunium vs Mendelevium
Neptunium Electron Configuration
Fermium Electron Configuration
Neptunium vs Fermium
Neptunium Electron Configuration
Nobelium Metal
Neptunium vs Nobelium

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