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Chemical Properties of Neptunium and Magnesium

Neptunium
Magnesium
Chemical Properties of Magnesium and Neptunium


Chemical Properties
Chemical Formula
Np   
Mg   
Isotopes
  
  
Known Isotopes
20   
19
15   
24
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
1.31   
31
Sanderson Electronegativity
Not Available   
1.32   
18
Allred Rochow Electronegativity
1.22   
26
1.23   
25
Mulliken-Jaffe Electronegativity
Not Available   
1.37   
16
Allen Electronegativity
Not Available   
1.29   
35
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
2.69   
23
Ionization Energies
  
  
1st Energy Level
604.50 kJ/mol   
99+
737.70 kJ/mol   
24
2nd Energy Level
1,128.00 kJ/mol   
99+
1,450.70 kJ/mol   
99+
3rd Energy Level
1,997.00 kJ/mol   
99+
7,732.70 kJ/mol   
5
4th Energy Level
3,242.00 kJ/mol   
99+
10,542.50 kJ/mol   
4
5th Energy Level
Not Available   
13,630.00 kJ/mol   
3
6th Energy Level
Not Available   
18,020.00 kJ/mol   
3
7th Energy level
Not Available   
21,711.00 kJ/mol   
3
8th Energy Level
Not Available   
25,661.00 kJ/mol   
3
9th Energy Level
Not Available   
31,653.00 kJ/mol   
3
10th Energy Level
Not Available   
35,458.00 kJ/mol   
5
11th Energy Level
Not Available   
169,988.00 kJ/mol   
1
12th Energy Level
Not Available   
189,368.00 kJ/mol   
1
Electrochemical Equivalent
1.77 g/amp-hr   
39
0.45 g/amp-hr   
99+
Electron Work Function
Not Available   
3.66 eV   
29
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Corrosion, Highly Inflammable, Ionization, Solubility   
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