Comparison of Titanium and Yttrium

Attribute	Yttrium ×	Titanium ×
Atomic mass (u)	88.90584	47.867
Standard state	Solid	Solid
Oxidation states	+3	+2 +3 +4
Electron configuration	[Kr]5s²4d¹	[Ar]4s²3d²
Atomic radius (van der waals) (pm)	219	187
Electronegativity (pauling scale)	1.22	1.54
Electron affinity (eV)	0.307	0.079
Ionization energy (eV)	6.217	6.828
Boiling point (K)	3618	3560
Melting point (K)	1795	1941
Density (g/cm³)	4.47	4.5
Atomic number	39	22
Group name	Transition metal	Transition metal
Discovered (year)	1794	1791
Symbol	Y	Ti