Atomic number:	21		Atomic weight:	44.955910
Shells:	2,8,9,2		Orbitals:	[Ar] 3d1 4s2
Melting point:	1541°C		Boiling point:	2830°C
Covalent radius:	1.44	Å	Atomic volume:	15.0	cm³/mol
Atomic radius:	2.09	Å	Ionic radius:	.75 (+3)	Å
Electronegativity:	1.36		Oxidation states:
1st ionization pot.:	6.5614	V	2nd ionization pot.:	12.80	V
3rd ionization pot.:	24.76	V	Specific heat:	0.6	J/gK
Heat of fusion:	14.10	kJ/mol	Heat of vapor.:	314.20	kJ/mol
Thermal conduct.:	0.158	W/cmK	Electrical conduct.:	0.0177	10^6/cm ohm
Density:	3.0	g/cm³	Valence:	3