Thulium

Discovered by: Per Theodore cleve

Facts

  • Thulium symbol is Tm.
  • contains 69 protons
  • contains 69 electrons
  • founded by Per Theodore Cleve


More Facts

  • the atom number is 69
  • the atomic mass is 169
  • Element belongs to Lanthanide
  • It costs about $700 for 10g

By: Emiley Head