Periodic Table
|
| Manganese |
|
|
| Symbol: |
Mn
|
| Atomic
Number: |
25
|
| Atomicmass: |
54.9380 g./mol
|
| Electronegative
(According to Pauling): |
1.5
|
| Density: |
7.43 g.cm-3 at 20°C
|
| Melting
Point: |
1247 °C
|
| Boiling
Point: |
2061 °C
|
| Venderwaals
Radius: |
0.126 nm
|
| Ionic
Radius: |
0.08 nm (+2) ; 0.046 nm (+7)
|
| Isotopes: |
7
|
| Electronic
Shell: |
[ Ar ] 3d5 4s2 |
|
| Energy
Of First Ionization: |
716 kJ./mol
|
|
No of Protons |
| Standard
Potential: |
- 1.05 V ( Mn2+/ Mn )
|
|
Electron
in Full Shell |
| Discoverd
By: |
Discovered by Johann Gahn in 1774 |
|
Electron
in Partial Shell |
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