Ch5 Chemical Bonding Flashcards
(24 cards)
Compound
A substance that is made up of two or more different elements combined together chemically
Octet rule
When bonding occurs atoms tend to reach an electron arrangement with eight electrons in the outermost energy level
Ion
A charged atom or group of atoms
Ionic bond
Is the force of attraction between oppositely charged ions in a compound
Transition metal
Is one that firms at least one ion with a partially filled d Sublevel
Van der waals forces
Are forces that arise due to temporary dipoles between molecules
Permanent dipole dipole forces
Forces of attraction between positive pole of one molecule and the negative pile of another molecule
Intermolecular forces
Bonds between molecules
Intramolecular forces
Forces within a molecule that hold the atoms of the molecule together
Hydrogen sulphide
H2S
4 bonded pairs
Tetrahedral
Bond angle 109.5
3 bonded 1 lone
Pyramidal
107
3 bonded 0 lone
Triongal planar
120
2 bonded 2 lone
Angular
H2O =104.5
H2S = 102
2 bonding 0 lone
Linear
180
Ionic bonding
Bond between oppositely charged ions
Polar covalent
Unequal sharing of bonding electrons/electron pairs where bond has slight positive and slight negative ends
Does ammonia or water have stronger hydrogen bonding
Water
Hydrogen bonding
Intermolecular attraction involving slightly + hydrogen atom and a slightly - atom-F O N
Intramolecular
Forces between atoms within a molecule
Intermolecular
Forces between molecules
Water and charged rod
Polarity of water causes attraction to charged row
Cyclohexane and charged rod
Non polarity if cyclohexane means it is not affected by charged rod
What would happen if water and negatively charged rod
Stream of water still attracted to rod as molecules arrange themselves with positive pile towards rod
