Pr - Praseodymium - periodic table of the elements

Baron von Welsbach separated the components of dydimium into neodumium (the new twin) and praseodymium (the green twin) in 1885 in Vienna. Praseodymium is a component of our glass blowing specticles.

Atomic number	-	59		Density	g/mL	6	.77
Atomic weight	u	140	.9077	Melting point	K	1204
Bonding radius	A	1	.65	Boiling point	K	3785
Atomic radius	A	2	.67	Heat of vaporization	kJ/mol	296	.8
Ionization Potential	V	5	.46	Heat of fusion	kJ/mol	6	.89
Electronegativity	-	1	.13	Specific heat	J/gK	0	.19
The oxide is mildly basic.				Crystal are hexagonal.
Electron configuration: [Xe] 4f³ 6s²

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