Y - Yttrium - periodic table of the elements

Yttrium is associated with the rare earths. Gadolin discovered yttria mineral in 1794, proposing it as a new metal's oxide. Yttrium is used in color phosphors, lasers, ceramic superconductors and has been discovered in relatively high concentrations in lunar samples.

Atomic number	-	39		Density	g/mL	4	.5
Atomic weight	u	88	.9059	Melting point	K	1799
Bonding radius	A	1	.62	Boiling point	K	3611
Atomic radius	A	2	.27	Heat of vaporization	kJ/mol	363
Ionization Potential	V	6	.38	Heat of fusion	kJ/mol	11	.4
Electronegativity	-	1	.22	Specific heat	J/gK	0	.3
The oxide is a weak base.				Crystal are hexagonal.
Electron configuration: [Kr] 4d¹ 5s²

Other elements of the periodic table

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

H He

Li Be B C N O F Ne

Na Mg Al Si P S Cl Ar

K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr

Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe

Cs Ba La * Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn

Fr Ra Ac ** Rf Db Sg Bh Hs Mt 110 111 112 113

Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr