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Chemical Properties of Radium and Manganese

Radium
Manganese
Chemical Properties of Manganese and Radium


Chemical Properties
Chemical Formula
Ra   
Mn   
Isotopes
  
  
Known Isotopes
33   
6
21   
18
Electronegativity
  
  
Pauling Electronegativity
0.90   
99+
1.55   
25
Sanderson Electronegativity
Not Available   
2.20   
7
Allred Rochow Electronegativity
0.97   
38
1.60   
9
Mulliken-Jaffe Electronegativity
0.92   
20
Not Available   
Allen Electronegativity
0.89   
99+
1.75   
15
Electropositivity
  
  
Pauling Electropositivity
3.10   
5
2.45   
29
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol   
99+
717.30 kJ/mol   
30
2nd Energy Level
979.00 kJ/mol   
99+
1,509.00 kJ/mol   
39
3rd Energy Level
Not Available   
3,248.00 kJ/mol   
21
4th Energy Level
Not Available   
4,940.00 kJ/mol   
20
5th Energy Level
Not Available   
6,990.00 kJ/mol   
17
6th Energy Level
Not Available   
9,220.00 kJ/mol   
16
7th Energy level
Not Available   
11,500.00 kJ/mol   
16
8th Energy Level
Not Available   
18,770.00 kJ/mol   
5
9th Energy Level
Not Available   
21,400.00 kJ/mol   
6
10th Energy Level
Not Available   
23,960.00 kJ/mol   
9
11th Energy Level
Not Available   
27,590.00 kJ/mol   
10
12th Energy Level
Not Available   
30,330.00 kJ/mol   
10
13th Energy Level
Not Available   
33,150.00 kJ/mol   
11
14th Energy Level
Not Available   
38,880.00 kJ/mol   
10
15th Energy Level
Not Available   
41,987.00 kJ/mol   
13
16th Energy Level
Not Available   
109,480.00 kJ/mol   
1
17th Energy Level
Not Available   
118,100.00 kJ/mol   
2
18th Energy Level
Not Available   
127,100.00 kJ/mol   
3
19th Energy Level
Not Available   
138,600.00 kJ/mol   
4
20th Energy Level
Not Available   
148,500.00 kJ/mol   
6
21st Energy Level
Not Available   
158,600.00 kJ/mol   
6
22nd Energy Level
Not Available   
172,500.00 kJ/mol   
5
23rd Energy Level
Not Available   
181,380.00 kJ/mol   
5
Electrochemical Equivalent
4.22 g/amp-hr   
6
0.29 g/amp-hr   
99+
Electron Work Function
Not Available   
4.10 eV   
25
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes   
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