Question

the tendency of an atom to attain an electron configuration having eight valence electrons is called the ____________.
hunds rule
aufbau principle
pauli exclusion principle
octet rule
question 8
1 pts
in general, main group elements tend to form ions by gaining or losing electrons so as to have a total of ________ valence electrons.
8
7
5
6

Explanation:

The octet rule states that atoms tend to gain, lose, or share electrons to have eight valence electrons. Main - group elements follow the octet rule when forming ions. Hund's rule is about electron - filling in degenerate orbitals. The Aufbau principle is about the order of filling orbitals with electrons. The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers.

Answer:

Question 1: D. octet rule
Question 2: A. 8