d and f BLOCK ELEMENTS

Which property is NOT typically associated with transition elements due to their partially filled d-orbitals?

• Display of a variety of oxidation states
• Formation of colored ions
• Entering into complex formation
• Formation of colorless ions

What is the general electronic configuration for the outer orbitals of Zn, Cd, Hg, and Cn?

• ns²np⁶
• (n-1)d⁵ns¹
• (n-1)d¹⁰ns²
• (n-2)f¹⁴(n-1)d¹⁰ns²

Why is the Fe³⁺ ion ([Ar] 3d⁵) relatively stable?

• Because it has no d-electrons
• Because it has a half-filled d-subshell
• Because it is a noble gas
• Because it has a completely filled d-subshell

Why is the Cu⁺ ion ([Ar] 3d¹⁰) relatively stable?

• Because it has no electrons
• Because it has a completely filled d-subshell
• Because it is a noble gas
• Because it has a half-filled d-subshell

What is the electronic configuration of the Cr³⁺ ion?

• [Ar] 3d²
• [Ar] 3d³
• [Ar] 3d⁴
• [Ar] 3d⁵