Periodic Table
|
| Boron |
|
|
| Symbol: |
B
|
| Atomic
Number: |
5
|
| Atomicmass: |
10.81 g./mol
|
| Electronegative
(According to Pauling): |
2.0
|
| Density: |
2.3 g.cm-3 at 20°C
|
| Melting
Point: |
2076 °C
|
| Boiling
Point: |
3927 °C
|
| Venderwaals
Radius: |
0.098 nm
|
| Ionic
Radius: |
0.027 nm
|
| Isotopes: |
2
|
| Electronic
Shell: |
[ He ] 2s2,2p1 |
|
| Energy
Of First Ionization: |
800.5 kJ./mol
|
|
No of Protons |
| Standard
Potential: |
Unknown
|
|
Electron
in Full Shell |
| Discoverd
By: |
Discovered by Sir Humphry Davy and J.L Gay-Lussac in 1808 |
|
Electron
in Partial Shell |
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