d and f BLOCK ELEMENTS

Compared to ordinary transition element series, how do the members of the lanthanoid series generally resemble each other?

• Less closely
• Equally
• More closely
• They have no resemblance

Which element's chemistry is often included when discussing the actinoids, despite not being an actinoid itself?

• Radium
• Actinium
• Protactinium
• Thorium

Which element's chemistry is often included when discussing the lanthanoids, despite not being a lanthanoid itself?

• Barium
• Lanthanum
• Yttrium
• Scandium

How many elements are there in each of the lanthanoid and actinoid series?

• Ten
• Twelve
• Fourteen
• Sixteen

Which block of elements includes the lanthanoids and actinoids?

• s-block
• p-block
• d-block
• f-block