पोटैशियम तत्व के बारे में जानकारी (Information about Potassium element)
Potassium
01. 1.st ionization energy [eV] → 4.3407
02. 2.nd ionization energy [eV] → 31.625
03. 3.rd ionization energy [eV] → 45.72
04. Atomic number → 19
05. Atomic radius [pm] → 243
06. Boiling point [°C] → 760
07. Brinell hardness [MPa] → 0.363
08. Covalent radius [pm] → 196
09. Critical point [°C] → 1950
10. Critical pressure [MPa] → 16
11. Density [g/cm3] → 0.862
12. Discovery → 1807
13. Electrical conductivity [S m-1] → 1.64 • 10^7
14. Electron configuration → 1s2 2s2 2p6 3s2 3p6 4s1
15. Electronegativity → 0.9
16. Element category → Alkali metals
17. Group → I.A
18. Hardness [Mohs scale] → 0.5
19. Heat capacity [J K-1g-1] → 0.757
20. Latin name → Kalium
21. Melting point [°C] → 93.65
22. Oxidation numbers → 1
23. Period → 4
24. Relative atomic mass → 39.0983
25. Stable isotopes → 3
26. State → Solid
27. Symbol → K
28. Thermal conductivity [W m-1K-1] → 102.5
29. Unstable isotopes → 8
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