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Compare Potassium vs Titanium

Comparing Potassium (K) and Titanium (Ti). Atomic numbers 19 and 22 with atomic masses 39.098 u and 47.867 u, classified as alkali metal and transition metal. Below: a side-by-side comparison of their physical, atomic, electron-configuration and historical properties, including density, melting and boiling points, ionization energies, oxidation states and discovery history.

vs
K
Potassium
#19
Ti
Titanium
#22

Periodic properties of the elements

PotassiumTitanium
SymbolKTi
Atomic number1922
Group14
Period44
Blocksd
Element categoryAlkali MetalTransition Metal

Physical properties

PotassiumTitanium
Phase at STPSolidSolid
Density0.862 g/cm34.506 g/cm3
Atomic weight39.0983 u47.8671 u
Melting point336.7 K
63.55 °C
146.39 °F		1941 K
1667.85 °C
3034.13 °F
Boiling point1032 K
758.85 °C
1397.93 °F		3560 K
3286.85 °C
5948.33 °F

Atomic properties

PotassiumTitanium
Electronegativity (Pauling Scale)0.821.54
Electron affinity48.383 kJ/mol7.289 kJ/mol
Oxidation states−1, +1
(a strongly basic oxide)		−2, −1, 0, +1, +2, +3, +4
(an amphoteric oxide)
Ionization energies
  1. 418.8 kJ/mol
  2. 3052 kJ/mol
  3. 4420 kJ/mol
  4. 5877 kJ/mol
  5. 7975 kJ/mol
  6. 9590 kJ/mol
  7. 11343 kJ/mol
  8. 14944 kJ/mol
  9. 16963.7 kJ/mol
  10. 48610 kJ/mol
  11. 54490 kJ/mol
  12. 60730 kJ/mol
  13. 68950 kJ/mol
  14. 75900 kJ/mol
  15. 83080 kJ/mol
  16. 93400 kJ/mol
  17. 99710 kJ/mol
  18. 444880 kJ/mol
  19. 476063 kJ/mol
  1. 658.8 kJ/mol
  2. 1309.8 kJ/mol
  3. 2652.5 kJ/mol
  4. 4174.6 kJ/mol
  5. 9581 kJ/mol
  6. 11533 kJ/mol
  7. 13590 kJ/mol
  8. 16440 kJ/mol
  9. 18530 kJ/mol
  10. 20833 kJ/mol
  11. 25575 kJ/mol
  12. 28125 kJ/mol
  13. 76015 kJ/mol
  14. 83280 kJ/mol
  15. 90880 kJ/mol
  16. 100700 kJ/mol
  17. 109100 kJ/mol
  18. 117800 kJ/mol
  19. 129900 kJ/mol
  20. 137530 kJ/mol
  21. 602930 kJ/mol
  22. 639294 kJ/mol

Electron configuration

PotassiumTitanium
Shorthand configuration[Ar] 4s1 [Ar] 3d2 4s2
Full configuration1s2 2s2 2p6 3s2 3p6 4s1 1s2 2s2 2p6 3s2 3p6 3d2 4s2
Electrons per shell2, 8, 8, 12, 8, 10, 2

History

PotassiumTitanium
DiscoveryHumphry Davy (1807)William Gregor (1791)
First isolationHumphry Davy (1807)Jöns Jakob Berzelius (1825)
Named byMartin Heinrich Klaproth (1795)
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