Themes > Science > Chemistry > General Chemistry > Elements > Online Interactive Periodic Table of the Elements > Yttrium

Name: Yttrium
Symbol: Y
Atomic Number: 39
Atomic Mass: 88.90585 amu
Melting Point: 1523.0 °C (1796.15 °K, 2773.4 °F)
Boiling Point: 3337.0 °C (3610.15 °K, 6038.6 °F)
Number of Protons/Electrons: 39
Number of Neutrons: 50
Crystal Structure: Hexagonal
Density @ 293 K: 4.469 g/cm3
Color: silvery

Atomic Structure

[Bohr Model of Yttrium]  
Number of Energy Levels: 5

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 9
    Fifth Energy Level: 2

Isotopes

Isotope Half Life
Y-86 14.74 hours
Y-87 3.35 days
Y-88 106.6 days
Y-89 Stable
Y-90 2.67 days
Y-90m 3.19 hours
Y-91 58.51 days
Y-91m 49.71 minutes
Y-92 3.54 hours
Y-93 10.2 hours
 

Facts

Date of Discovery: 1794
Discoverer: Johann Gadolin
Name Origin: After Ytterby (a town in Sweden)
Uses: color TV's, radars
Obtained From: monazite, xenotime, yettriac


Information provided by: http://www.chemicalelements.com