Ir - Iridium - periodic table of the elements

This precious transition metal was discovered by Tennant in 1803 in England.

Atomic number	-	77		Density	g/mL	22	.5
Atomic weight	u	192	.22	Melting point	K	2716
Bonding radius	A	1	.27	Boiling point	K	4701
Atomic radius	A	1	.87	Heat of vaporization	kJ/mol	604
Ionization Potential	V	9	.1	Heat of fusion	kJ/mol	26	.1
Electronegativity	-	2	.2	Specific heat	J/gK	0	.13
The oxide is mildly basic.				Crystal are face centered cubic.
Electron configuration: [Xe] 4f¹⁴ 5d⁷ 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