Europium Europium-156 Europium-153 Europium-157 Europium-164 Europium-149 Europium-166 Europium-160 Europium-167 Europium(III)oxide Europium-150 Europium-162 Europium-165 Europium-154 Europium-151 Europium-158 Europium-161 Europium-155 Europium-159 Europium-163 Europium-147 Europium-152 Europium-148 Isotopen van europium