Charge Clouds
- Created by: iloverevision:)
- Created on: 19-03-19 16:26
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- Charge Clouds
- charge clouds
- shape of molecules/ions depends on number of pairs of electrons in outer shell of central atom
- pairs of electrons can be shared in covalent bond or can be unshared
- shared electrons are called bonding pairs, unshared electrons are called lone/non-bonding pairs
- bonding & lone pairs of electrons exist as charge clouds
- charge cloud is an area where there is a big chance of finding an electron
- the electrons don't stay still - they whizz around charge cloud
- charge cloud is an area where there is a big chance of finding an electron
- bonding & lone pairs of electrons exist as charge clouds
- shared electrons are called bonding pairs, unshared electrons are called lone/non-bonding pairs
- pairs of electrons can be shared in covalent bond or can be unshared
- shape of molecules/ions depends on number of pairs of electrons in outer shell of central atom
- electron pair repulsion
- electrons are all negatively charged so charge clouds repel each other until they're as far apart as possible
- sounds simple but shape of charge cloud affects how much it repels other charge clouds
- lone pair charge clouds repel more than bonding pair charge clouds so bond angles are often reduced because bonding pairs are pushed together by lone-pair repulsion
- valence shell electron pair repulsion theory
- lone pair/lone pair angles are the biggest, lone pair/bonding pair the second biggest & bonding pair/bonding pair are the smallest
- lone pair charge clouds repel more than bonding pair charge clouds so bond angles are often reduced because bonding pairs are pushed together by lone-pair repulsion
- sounds simple but shape of charge cloud affects how much it repels other charge clouds
- electrons are all negatively charged so charge clouds repel each other until they're as far apart as possible
- charge clouds
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