Chemical Element #91: Protactinium (Pa)

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Atomic Number: 91, Element Symbol: Pa, Element Name: Protactinium, Atomic Mass: 231.0359 u.

Detailed Properties:

Atomic Number:	91
Element Symbol:	Pa
Element Name:	Protactinium
Electron Configuration:	[Rn]7s²5f²6d¹
Atomic Mass:	231.035900 u
Melting Point:	1845.00 K
Boiling Point:	Unknown

Stable Isotopes:

Isotope	Mass	Abundance
²³¹Pa	231.035884	1.000000

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2022-05-01, 763👍, 0💬

Chemical Element #88: Radium (Ra)
Atomic Number: 88, Element Symbol: Ra, Element Name: Radium, Atomic Mass: 226.02541 u. 2022-07-06, 891🔥, 1💬

Chemical Element #92: Uranium (U)
Atomic Number: 92, Element Symbol: U, Element Name: Uranium, Atomic Mass: 238.0289 u. 2022-05-01, 768🔥, 0💬

Chemical Element #91: Protactinium (Pa)
Atomic Number: 91, Element Symbol: Pa, Element Name: Protactinium, Atomic Mass: 231.0359 u. 2022-05-01, 764🔥, 0💬

Chemical Element #86: Radon (Rn)
Atomic Number: 86, Element Symbol: Rn, Element Name: Radon, Atomic Mass: 222.01758 u. 2022-07-01, 752🔥, 0💬

Chemical Element #89: Actinium (Ac)
Atomic Number: 89, Element Symbol: Ac, Element Name: Actinium, Atomic Mass: 227.02775 u. 2022-07-06, 722🔥, 1💬

Chemical Element #94: Plutonium (Pu)
Atomic Number: 94, Element Symbol: Pu, Element Name: Plutonium, Atomic Mass: 244.06420 u. 2022-04-21, 690🔥, 0💬

Chemical Element #95: Americium (Am)
Atomic Number: 95, Element Symbol: Am, Element Name: Americium, Atomic Mass: 243.06138 u. 2022-04-21, 688🔥, 0💬

Chemical Element #87: Francium (Fr)
Atomic Number: 87, Element Symbol: Fr, Element Name: Francium, Atomic Mass: 223.01973 u. 2022-05-15, 686🔥, 0💬

Chemical Element #93: Neptunium (Np)
Atomic Number: 93, Element Symbol: Np, Element Name: Neptunium, Atomic Mass: 237.04817 u. 2022-05-01, 617🔥, 0💬

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