By Z = 3, we mean that the atomic number of the element is 3.
Its electronic configuration is 2, 1.
Hence, the valency of the element is 1 (since the outermost shell has only one electron).
Therefore, the element with Z = 3 is lithium.
(i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)