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Protactinium
Protactinium




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Chemical Properties of Protactinium

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Chemical

Chemical Formula

Pa

Isotopes

Known Isotopes

27
Rank: 12 (Overall)
0 38
👆🏻

Electronegativity

Pauling Electronegativity

1.50
Rank: 28 (Overall)
0 2.6
👆🏻

Sanderson Electronegativity

1.50
Rank: 18 (Overall)
0.22 2.56
👆🏻

Allred Rochow Electronegativity

1.14
Rank: 29 (Overall)
0.86 1.9
👆🏻

Mulliken-Jaffe Electronegativity

1.50
Rank: 26 (Overall)
0.62 2.48
👆🏻

Allen Electronegativity

1.50
Rank: 32 (Overall)
0.659 2.7
👆🏻

Electropositivity

Pauling Electropositivity

2.50
Rank: 27 (Overall)
1.46 3.3
👆🏻

Ionization Energies

1st Energy Level

568.00 kJ/mol
Rank: 68 (Overall)
375.7 26130
👆🏻

2nd Energy Level

1,128.00 kJ/mol
Rank: 73 (Overall)
392.8 28750
👆🏻

3rd Energy Level

1,814.00 kJ/mol
Rank: 85 (Overall)
392.8 34230
👆🏻

4th Energy Level

2,991.00 kJ/mol
Rank: 76 (Overall)
375.7 37066
👆🏻

5th Energy Level

5,120.00 kJ/mol
Rank: 71 (Overall)
392 97510
👆🏻

6th Energy Level

5,680.00 kJ/mol
Rank: 74 (Overall)
1007 105800
👆🏻

7th Energy level

5,680.00 kJ/mol
Rank: 65 (Overall)
1007 114300
👆🏻

8th Energy Level

5,680.00 kJ/mol
Rank: 63 (Overall)
730 125300
👆🏻

9th Energy Level

5,120.00 kJ/mol
Rank: 75 (Overall)
1007 134700
👆🏻

10th Energy Level

5,120.00 kJ/mol
Rank: 72 (Overall)
392 144300
👆🏻

11th Energy Level

5,680.00 kJ/mol
Rank: 66 (Overall)
392 169988
👆🏻

12th Energy Level

5,680.00 kJ/mol
Rank: 68 (Overall)
0 189368
👆🏻

13th Energy Level

5,680.00 kJ/mol
Rank: 57 (Overall)
1007 76015
👆🏻

14th Energy Level

5,680.00 kJ/mol
Rank: 45 (Overall)
380 86450
👆🏻

15th Energy Level

56,800.00 kJ/mol
Rank: 57 (Overall)
33000 100700
👆🏻

16th Energy Level

56,800.00 kJ/mol
Rank: 45 (Overall)
375.7 109480
👆🏻

17th Energy Level

568.50 kJ/mol
Rank: 71 (Overall)
375.7 122200
👆🏻

18th Energy Level

5,680.00 kJ/mol
Rank: 59 (Overall)
0 134810
👆🏻

19th Energy Level

568.30 kJ/mol
Rank: 69 (Overall)
375.7 148700
👆🏻

20th Energy Level

568.00 kJ/mol
Rank: 63 (Overall)
0 171200
👆🏻

21st Energy Level

568.00 kJ/mol
Rank: 73 (Overall)
375.7 179100
👆🏻

22nd Energy Level

568.00 kJ/mol
Rank: 58 (Overall)
330 184900
👆🏻

23rd Energy Level

568.00 kJ/mol
Rank: 73 (Overall)
357.6 198800
👆🏻

24th Energy Level

568.00 kJ/mol
Rank: 60 (Overall)
297.3 195200
👆🏻

25th Energy Level

568.00 kJ/mol
Rank: 60 (Overall)
0 121900
👆🏻

26th Energy Level

568.00 kJ/mol
Rank: 67 (Overall)
357.6 127700
👆🏻

27th Energy Level

568.00 kJ/mol
Rank: 63 (Overall)
0 133800
👆🏻

28th Energy Level

568.00 kJ/mol
Rank: 67 (Overall)
297.3 139800
👆🏻

29th Energy Level

568.00 kJ/mol
Rank: 69 (Overall)
0 148100
👆🏻

30th Energy Level

568.00 kJ/mol
Rank: 64 (Overall)
0 154500
👆🏻

Electrochemical Equivalent

1.72 g/amp-hr
Rank: 47 (Overall)
0.16812 8.3209
👆🏻

Electron Work Function

5.89 eV
Rank: 3 (Overall)
2.14 6
👆🏻

Other Chemical Properties

Ionization, Radioactive Isotopes, Radioactivity