Question

Which of the following information is not a practice permit? (a) any practice conditions, (b) regulated member contact information, (c) expiry date, and (d) category of registration.

Answer 1

The configurations 1p³, 2p⁸, and 3g¹¹ are not permitted due to violations of the electron configuration rules, namely the non-existence of certain orbitals and the limitation on the number of electrons that can occupy a specific orbital.

Step-by-step explanation:

The question pertains to the electron configuration of atomic orbitals and asks which of the given electronic configurations are not allowed. According to the Aufbau principle, Pauli exclusion principle, and Hund's rule, certain configurations are prohibited for electrons around an atom:

• (a) 1p³ - This is not allowed because the first energy level does not have a p-orbital. The p-orbital starts from the second energy level (n=2).
• (b) 2p⁸ - This violates the Pauli exclusion principle as a p-orbital can hold a maximum of 6 electrons.
• (c) 3g¹¹ - This configuration is not allowed because a g-orbital does not exist in the known periodic table. The known orbitals are s, p, d, and f.
• (d) 4f² - This is a permissible configuration with two electrons in one of the 4f orbitals, following all the rules.