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Chemical Properties of Rubidium and Neptunium

Rubidium
Neptunium
Chemical Properties of Neptunium and Rubidium


Chemical Properties
Chemical Formula
Rb   
Np   
Isotopes
  
  
Known Isotopes
29   
10
20   
19
Electronegativity
  
  
Pauling Electronegativity
0.82   
99+
1.36   
29
Sanderson Electronegativity
0.31   
32
Not Available   
Allred Rochow Electronegativity
0.89   
40
1.22   
26
Mulliken-Jaffe Electronegativity
0.69   
24
Not Available   
Allen Electronegativity
0.71   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.18   
3
2.64   
25
Ionization Energies
  
  
1st Energy Level
403.00 kJ/mol   
99+
604.50 kJ/mol   
99+
2nd Energy Level
2,633.00 kJ/mol   
6
1,128.00 kJ/mol   
99+
3rd Energy Level
3,860.00 kJ/mol   
11
1,997.00 kJ/mol   
99+
4th Energy Level
5,080.00 kJ/mol   
18
3,242.00 kJ/mol   
99+
5th Energy Level
6,850.00 kJ/mol   
19
Not Available   
6th Energy Level
8,140.00 kJ/mol   
20
Not Available   
7th Energy level
9,570.00 kJ/mol   
20
Not Available   
8th Energy Level
13,120.00 kJ/mol   
17
Not Available   
9th Energy Level
14,500.00 kJ/mol   
18
Not Available   
10th Energy Level
26,740.00 kJ/mol   
6
Not Available   
Electrochemical Equivalent
3.19 g/amp-hr   
14
1.77 g/amp-hr   
39
Electron Work Function
2.16 eV   
99+
Not Available   
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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