Thulium: Thomas Jefferson Lab National Accelerator Facility Thomas Jefferson Lab National Accelerator Facility Thulium isotopes Thomas Jefferson Lab National Accelerator Facility Thulium isotopes தனிமங்களில் தூலியம் It's Elemental – Thulium It's Elemental – Thulium Thomas Jefferson Lab National Accelerator Facility Thomas Jefferson Lab National Accelerator Facility It's Elemental - Thulium It's Elemental - Thulium Thulium: http://education.jlab.org/itselemental/ele069.html It's Elemental – Thulium <http://education.jlab.org/itselemental/ele069.html>