d and f BLOCK ELEMENTS

Why is Scandium (Sc) sometimes not considered a typical transition element?

• Because it is radioactive
• Because it has only one d-electron in its ground state
• Because it is a noble gas
• Because it belongs to the p-block

Why is Zinc (Zn) sometimes not considered a typical transition element?

• Because it is a gas
• Because it has a completely filled d-subshell in its ground state and common oxidation states
• Because it is radioactive
• Because it belongs to the s-block

What is the maximum number of unpaired electrons found in the ground state of any first-row (3d series) transition element?

• 4
• 5
• 6
• 10

How many unpaired electrons are present in the ground state of Copper (Cu)?

• 0
• 1
• 2
• 3

How many unpaired electrons are present in the ground state of Nickel (Ni)?

• 1
• 2
• 3
• 4