Protactinium – Pa91
Atomic Number 91 | Atomic Symbol Pa | Atomic Name Protactinium
1.5
Tantalum – Ta73
Atomic Number 73 | Atomic Symbol Ta | Atomic Name Tantalum
Atomic Number 91 | Atomic Symbol Pa | Atomic Name Protactinium
Atomic Number 73 | Atomic Symbol Ta | Atomic Name Tantalum