Banye na Elementị

Họrọ ruo 4 elements ka ịtụle uru ha n'otu n'otu.

Pa

Protactinium

#91 · Aktinidi

Ụdị231.03588 u
Mgbatị15.37 g/cm³
Mkpa1841.0 K
Ńkwádò4300.0 K
Elektrọn1.5
I_onization Energy568.0 kJ/mol
Atomic Radius163.0 pm
Blokịf-block
State (RT)Òtù
Nhazi[Rn] 5f2 6d1 7s2
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