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Chemical Properties of Manganese and Tantalum

Manganese
Tantalum
Chemical Properties of Tantalum and Manganese


Chemical Properties
Chemical Formula
Mn   
Ta   
Isotopes
  
  
Known Isotopes
21   
18
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.55   
25
1.50   
27
Sanderson Electronegativity
2.20   
7
Not Available   
Allred Rochow Electronegativity
1.60   
9
1.33   
22
Allen Electronegativity
1.75   
15
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
2.45   
29
2.50   
27
Ionization Energies
  
  
1st Energy Level
717.30 kJ/mol   
30
761.00 kJ/mol   
18
2nd Energy Level
1,509.00 kJ/mol   
39
1,500.00 kJ/mol   
40
3rd Energy Level
3,248.00 kJ/mol   
21
Not Available   
4th Energy Level
4,940.00 kJ/mol   
20
Not Available   
5th Energy Level
6,990.00 kJ/mol   
17
Not Available   
6th Energy Level
9,220.00 kJ/mol   
16
Not Available   
7th Energy level
11,500.00 kJ/mol   
16
Not Available   
8th Energy Level
18,770.00 kJ/mol   
5
Not Available   
9th Energy Level
21,400.00 kJ/mol   
6
Not Available   
10th Energy Level
23,960.00 kJ/mol   
9
Not Available   
11th Energy Level
27,590.00 kJ/mol   
10
Not Available   
12th Energy Level
30,330.00 kJ/mol   
10
Not Available   
13th Energy Level
33,150.00 kJ/mol   
11
Not Available   
14th Energy Level
38,880.00 kJ/mol   
10
Not Available   
15th Energy Level
41,987.00 kJ/mol   
13
Not Available   
16th Energy Level
109,480.00 kJ/mol   
1
Not Available   
17th Energy Level
118,100.00 kJ/mol   
2
Not Available   
18th Energy Level
127,100.00 kJ/mol   
3
Not Available   
19th Energy Level
138,600.00 kJ/mol   
4
Not Available   
20th Energy Level
148,500.00 kJ/mol   
6
Not Available   
21st Energy Level
158,600.00 kJ/mol   
6
Not Available   
22nd Energy Level
172,500.00 kJ/mol   
5
Not Available   
23rd Energy Level
181,380.00 kJ/mol   
5
Not Available   
Electrochemical Equivalent
0.29 g/amp-hr   
99+
1.35 g/amp-hr   
99+
Electron Work Function
4.10 eV   
25
4.25 eV   
21
Other Chemical Properties
Ionization, Radioactive Isotopes   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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