Chapter 6- covalent bonding Flashcards
1
Q
What is a a covalent molecular substance?
A
Covalent molecular substances are held together by covalent bonds, these substances are made up of molecules
2
Q
What is a molecule?
A
A molecules is a seperate group of non-metallic atoms held together by covalent bonds
3
Q
What are covalent bonds?
A
Covalent bonds are produced when on-metallic atoms react together, sharing pairs of electrons so that each have an outer shell with 8 electrons
4
Q
What are examples of non polar covalent bond structures?
A
Linear
tetrahedral
planar
5
Q
What are examples of polar covalent bond structures?
A
Pyramidal
v-shaped
6
Q
When are bond dipoles made?
A
When atoms with different electronegativities bond a bond dipole is formed
7
Q
What are the three intermolecular forces and when are they produced?
A
- Dispersion forces (all atoms/molecules)
- dipole-dipole interactions (only polar discrete molecules)
- hydrogen bonding (when hydrogen bonds with fluorine, oxygen or nitrogen)
