1 <element name="Thulium"/>
3 <atomic-number>69</atomic-number>
4 <atomic-weight>168.93421</atomic-weight>
5 <oxidation-states>+3</oxidation-states>
6 <state-at-room-temp>solid, metal</state-at-room-temp>
7 <melting-point>1818</melting-point>
8 <boiling-point>2220</boiling-point>