Selenium तत्व के बारे में जानकारी (Information about Selenium element)
Selenium
01. 1st ionization energy [eV] → 9.7524
02. 2nd ionization energy [eV] → 21.19
03. 3rd ionization energy [eV] → 30.82
04. Atomic number → 34
05. Boiling point [°C] → 685
06. Brinell hardness [MPa] → 736
07. Critical point [°C] → 1493
08. Critical pressure [MPa] → 27.2
09. Density [g/cm3] → 4.8
10. Discovery → 1817
11. Electrical conductivity [S m-1] → 8 • 10^6
12. Electron configuration → 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p4
13. Electronegativity → 2.4
14. Element category → Nonmetals
15. Group → VI.A
16. Hardness [Mohs scale] → 2
17. Heat capacity [J K-1g-1] → 0.32
18. Latin name → Selenium
19. Melting point [°C] → 217
20. Oxidation numbers → -2, 2, 4, 6
21. Period → 4
22. Relative atomic mass → 78.96
23. Shear modulus [GPa] → 3.7
24. Stable isotopes → 6
25. State → Solid
26. Symbol → Se
27. Thermal conductivity [W m-1K-1] → 2.04
28. Unstable isotopes → 14
29. Young's modulus [GPa] → 10
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