d and f BLOCK ELEMENTS Quiz

• They have paired electrons in s-orbitals.
• Presence of unpaired electrons in d-orbitals.
• They contain only paired electrons.
• They lack d-electrons.

• +1, +2, +3
• +2, +3, +4
• +3 only
• +3, +5, +7

• Transition elements have completely filled d subshells.
• Transition elements lack s electrons.
• Transition elements have incompletely filled d subshells in their ground state or common oxidation states.
• Transition elements have fewer valence electrons.

• Iron (Fe)
• Copper (Cu)
• Zinc (Zn)
• Vanadium (V)

• They have low melting points.
• They exhibit only one oxidation state.
• They have partially filled d-orbitals in their ground state or in one of their common oxidation states.
• They are all radioactive.