Bonding & Atomic Structure Flashcards
Why is electronic configuration important?
- tells how an element will react
- can indicate how reactive elements may be
- total chemistry of element is dictated by its electronic configuration
What does a molecular bond hold?
Holds two atoms together
What is a homonuclear bond?
Between two atoms that are the same
What is a heteonuclear bond?
Between two different atoms
What does covalent bonding consist of?
One from each atom so they “share” electrons to form a full outer shell
What is the double bond also known as?
The pi bond
What is a triple bond?
- sigma bond plus 2 pi bonds
Define hybridisation?
Atomic orbitals with equal energies undergo hybridisation in bond formation
Outline the 3 types of geometry in hybridisation;
1- linear
2- trigonal
3-tetrahedral
Outline linear geometry:
Two electron groups are involved, results in sp hybridisation, the angle between the orbital is 180°
Outline trigonal plane geometry;
3 electron groups involved, resulting in sp2 hybridisation, the angle between orbitals is 120°
Outline tetrahedral geometry;
4 electron groups are involved, results in sp3 hybridisation and the angles are 109.5°
What are two types of electron pairs?
Bonding
Non-bonding
What is the repulsion between lone pairs?
Intensely strong
What is the repulsion between long pairs and bonding pairs?
Very strong
