d and f BLOCK ELEMENTS

Which of the following is NOT a reason why Zinc, Cadmium, and Mercury are still studied with transition metals?

• They are positioned in the d-block of the periodic table
• They are the end members of the 3d, 4d, and 5d transition series
• They meet the strict IUPAC definition of transition metals
• They share some chemical characteristics with other d-block elements

What is the ground state electronic configuration of Actinium (Ac), the first element of the 6d series?

• [Rn] 6d2 7s1
• [Rn] 6d1 7s2
• [Rn] 5f1 7s2
• [Rn] 6d0 7s3

What is the ground state electronic configuration of Lanthanum (La), often considered the first element of the 5d series?

• [Xe] 5d2 6s1
• [Xe] 5d1 6s2
• [Xe] 4f1 6s2
• [Xe] 5d0 6s3

What is the ground state electronic configuration of Yttrium (Y), the first element of the 4d series?

• [Kr] 4d2 5s1
• [Kr] 4d1 5s2
• [Kr] 4d0 5s3
• [Kr] 4d2 5s2

What is the ground state electronic configuration of Scandium (Sc), the first element of the 3d series?

• [Ar] 3d2 4s1
• [Ar] 3d1 4s2
• [Ar] 3d0 4s3
• [Ar] 3d2 4s2