Question

1. choose the best answer. (see companion material, the periodical table, attached.)

which element is part of the d - block?
b
co
li
ac

1. choose the best answer. (see companion material, the periodical table, attached.)

which element belongs to the f - block?
be
zr
nd
f

Explanation:

• For question 11:
• Boron (B) is in the p - block.
• Cobalt (Co) is a transition metal and is part of the d - block.
• Lithium (Li) is in the s - block.
• Actinium (Ac) is part of the f - block (actinide series).
• For question 12:
• Beryllium (Be) is in the s - block.
• Zirconium (Zr) is in the d - block.
• Neodymium (Nd) is a lanthanide and belongs to the f - block.
• Fluorine (F) is in the p - block.

Answer:

1. Co
2. Nd