Chemical Formula
Md
Pa
Isotopes
Known Isotopes
1627
0
38
👆🏻
Electronegativity
Pauling Electronegativity
1.301.50
0
2.6
👆🏻
Sanderson Electronegativity
1.301.50
0.22
2.56
👆🏻
Allred Rochow Electronegativity
1.201.14
0.86
1.9
👆🏻
Mulliken-Jaffe Electronegativity
1.301.50
0.62
2.48
👆🏻
Allen Electronegativity
1.301.50
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2.702.50
1.46
3.3
👆🏻
Ionization Energies
1st Energy Level
635.00 kJ/mol568.00 kJ/mol
375.7
26130
👆🏻
2nd Energy Level
1,235.00 kJ/mol1,128.00 kJ/mol
392.8
28750
👆🏻
3rd Energy Level
2,470.00 kJ/mol1,814.00 kJ/mol
392.8
34230
👆🏻
4th Energy Level
3,840.00 kJ/mol2,991.00 kJ/mol
375.7
37066
👆🏻
5th Energy Level
6,350.00 kJ/mol5,120.00 kJ/mol
392
97510
👆🏻
6th Energy Level
6,350.00 kJ/mol5,680.00 kJ/mol
1007
105800
👆🏻
7th Energy level
6,350.00 kJ/mol5,680.00 kJ/mol
1007
114300
👆🏻
8th Energy Level
6,350.00 kJ/mol5,680.00 kJ/mol
730
125300
👆🏻
9th Energy Level
6,350.00 kJ/mol5,120.00 kJ/mol
1007
134700
👆🏻
10th Energy Level
6,350.00 kJ/mol5,120.00 kJ/mol
392
144300
👆🏻
11th Energy Level
6,400.00 kJ/mol5,680.00 kJ/mol
392
169988
👆🏻
12th Energy Level
60,100.00 kJ/mol5,680.00 kJ/mol
0
189368
👆🏻
13th Energy Level
6,350.00 kJ/mol5,680.00 kJ/mol
1007
76015
👆🏻
14th Energy Level
1,150.00 kJ/mol5,680.00 kJ/mol
380
86450
👆🏻
15th Energy Level
63,500.00 kJ/mol56,800.00 kJ/mol
33000
100700
👆🏻
16th Energy Level
635.00 kJ/mol56,800.00 kJ/mol
375.7
109480
👆🏻
17th Energy Level
1,107.00 kJ/mol568.50 kJ/mol
375.7
122200
👆🏻
18th Energy Level
6,350.00 kJ/mol5,680.00 kJ/mol
0
134810
👆🏻
19th Energy Level
635.00 kJ/mol568.30 kJ/mol
375.7
148700
👆🏻
20th Energy Level
635.00 kJ/mol568.00 kJ/mol
0
171200
👆🏻
21st Energy Level
6,350.00 kJ/mol568.00 kJ/mol
375.7
179100
👆🏻
22nd Energy Level
635.00 kJ/mol568.00 kJ/mol
330
184900
👆🏻
23rd Energy Level
6,350.00 kJ/mol568.00 kJ/mol
357.6
198800
👆🏻
24th Energy Level
635.00 kJ/mol568.00 kJ/mol
297.3
195200
👆🏻
25th Energy Level
635.00 kJ/mol568.00 kJ/mol
0
121900
👆🏻
26th Energy Level
635.00 kJ/mol568.00 kJ/mol
357.6
127700
👆🏻
27th Energy Level
635.00 kJ/mol568.00 kJ/mol
0
133800
👆🏻
28th Energy Level
635.00 kJ/mol568.00 kJ/mol
297.3
139800
👆🏻
29th Energy Level
635.00 kJ/mol568.00 kJ/mol
0
148100
👆🏻
30th Energy Level
635.00 kJ/mol568.00 kJ/mol
0
154500
👆🏻
Electrochemical Equivalent
3.21 g/amp-hr1.72 g/amp-hr
0.16812
8.3209
👆🏻
Electron Work Function
3.89 eV5.89 eV
2.14
6
👆🏻
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity