Group properties | The Periodic Table and Atoms

Classify each element as a main group element, a transition metal or an inner transition metal:

Sn, Cu, Hf, Ce, Na, Xe, No, Mo

  • Main groups: the 2 groups at the extreme left and the 6 groups at the extreme right of the periodic table ⇒ Na, Sn, Xe
  • Transition metal groups: the groups immediately between the main group elements ⇒ Mo, Cu, Hf
  • Inner transition metal groups: the 14 groups shown at the bottom of the table (lanthanides and actinides) ⇒ Ce, No