about ionic bond
and about hunds rule principal
Answers
Answer:
Introduction to Hund's Rule
Aufbau principle tells us that the lowest energy orbitals get filled by electrons first. ... According to Hund's rule: Before the double occupation of any orbital, every orbital in the sub level is singly occupied.
Explanation:
Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds.
Hund rule Principle tells us that the lowest energy orbitals get filled by electrons first. After the lower energy orbitals are filled, the electrons move on to higher energy orbitals. The problem with this rule is that it does not tell about the three 2p orbitals and the order that they will be filled in.