Question

classify the following elements as main group elements, transition metals, or inner transition metals. drag the appropriate elements to their respective bins. view available hint(s) p pb th fe pt ba main group elements transition metals inner transition metals reset help

Explanation:

• Main group elements: Elements in groups 1, 2, and 13 - 18. Phosphorus (P) is in group 15, Lead (Pb) is in group 14, Barium (Ba) is in group 2. So these are main group elements.
• Transition metals: Elements in groups 3 - 12. Iron (Fe) and Platinum (Pt) are in the d - block (groups 8 and 10 respectively), so they are transition metals.
• Inner transition metals: Elements in the f - block (lanthanides and actinides). Thorium (Th) is an actinide, so it is an inner transition metal.

Answer:

• Main group elements: P, Pb, Ba
• Transition metals: Fe, Pt
• Inner transition metals: Th