Periodic Table
|
| Chromium |
|
|
| Symbol: |
Cr
|
| Atomic
Number: |
24
|
| Atomicmass: |
51.996 g./mol
|
| Electronegative
(According to Pauling): |
1.6
|
| Density: |
7.19 g.cm-3 at 20°C
|
| Melting
Point: |
1907 °C
|
| Boiling
Point: |
2672 °C
|
| Venderwaals
Radius: |
0.127 nm
|
| Ionic
Radius: |
0.061 nm (+3) ; 0.044 nm (+6)
|
| Isotopes: |
6
|
| Electronic
Shell: |
[ Ar ] 3d4 4s2 |
|
| Energy
Of First Ionization: |
651.1 kJ./mol
|
|
No of Protons |
| Standard
Potential: |
- 0.71 V (Cr3+ / Cr )
|
|
Electron
in Full Shell |
| Discoverd
By: |
Discovered by Vaughlin in 1797 |
|
Electron
in Partial Shell |
| |
|
|
|
| |
|
| |
|
|
|
|
|
|
|
|
|
FLW, Inc. provides ISO certified sales, service and
calibration for physical measurement, test & control.
