39 Y 88.905842

Yttrium

TRANSITION METAL

Phase: Solid

Discovered: Johan Gadolin

Block: D

Summary

Yttrium is a chemical element with symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and it has often been classified as a "rare earth element". Yttrium is almost always found combined with the lanthanides in rare earth minerals and is never found in nature as a free element.

Appearance: silvery white

Source: Wikipedia

Physical Properties

Atomic Mass 88.905842 u

Density 4.472 g/cm³

Melting Point 1799 K

Boiling Point 3203 K

Molar Heat 26.53 J/(mol·K)

Electron Affinity 29.6 kJ/mol

Ionization Energies

1^st: 600 kJ/mol

2^nd: 1180 kJ/mol

3^rd: 1980 kJ/mol

4^th: 5847 kJ/mol

5^th: 7430 kJ/mol

6^th: 8970 kJ/mol

7^th: 11190 kJ/mol

8^th: 12450 kJ/mol

9^th: 14110 kJ/mol

10^th: 18400 kJ/mol

11^th: 19900 kJ/mol

12^th: 36090 kJ/mol