Ru - Ruthenium - periodic table of the elements

Ruthenium was discovered in 1827 by Osann in Russia. This is, apparently, Dr. Ruth Westheimer's favorite element, but she was unreachable for comment at the time of this listing.

Atomic number	-	44		Density	g/mL	12	.2
Atomic weight	u	101	.07	Melting point	K	2523
Bonding radius	A	1	.25	Boiling point	K	4423
Atomic radius	A	1	.89	Heat of vaporization	kJ/mol	595
Ionization Potential	V	7	.37	Heat of fusion	kJ/mol	24
Electronegativity	-	2	.2	Specific heat	J/gK	0	.238
The oxide is mildly acidic.				Crystal are hexagonal.
Electron configuration: [Kr] 4d⁷ 5s¹

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