Flashcards
Shapes of Molecules
Cards in this deck (25)
- 1What is the difference between bonding pairs and lone pairs/non-bonding pairs?Bonding pairs = shared electrons
Lone pairs = unshared electrons - 2What is the 'electron pair repulsion theory'?Electron pairs repel each other as much as they can. Lone pairs repel more than bonding pairs, so the greatest angles are between lone pairs of electrons. Bond angles between bonding pairs are often reduced because they are pushed together by lone pair repulsion
- 3Order the type of electron pair by how much it repels the other electron pairs from highest repulsion to lowestLone/lone > lone/bonded > bonded/bonded
- 4By how many degrees are bond angles reduced by per lone pair?2.5°
- 5A molecule has 2 bonding pairs. What is its shape?Linear
- 6What is/are the bond angle(s) present in a linear molecule?180°
- 7Give an example of a linear molecule
- 8A molecule has 3 bonding pairs. What is its shape?Trigonal planar
- 9What is/are the bond angle(s) present in a trigonal planar molecule?120°
- 10Give an example of a molecule with a trigonal planar shape
- 11A molecule has 4 bonding pairs. What is its shape?Tetrahedral
- 12What is/are the bond angle(s) present in tetrahedral molecules?109.5°
- 13Give an example of a tetrahedral molecule
- 14A molecule has 5 bonding pairs. What is its shape?Trigonal bipyramidal
- 15What is/are the bond angle(s) present in trigonal bipyramidal molecules?90°
120° - 16A molecule has 6 bonding pairs. What is its shape?Octahedral
- 17Give an example of a trigonal bipyramidal molecule
- 18What is/are the bond angle(s) present in octahedral molecules?90°
- 19Give an example of an octahedral molecule
- 20A molecule has 3 bonding pairs and 1 lone pair. What is its shape?Pyramidal
- 21What is/are the bond angle(s) present in pyramidal molecules?107°
- 22Give an example of a pyramidal molecule
- 23A molecule has 2 bonding pairs and 1 lone pair. What is its name?Bent / angular / non-linear
- 24What is/are the bond angle(s) present in bent/angular/non-linear molecules?104.5°
- 25Give an example of a bent/angular/non-linear molecule
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- User has deleted their subject information Flashcards on Shapes of Molecules, created by Deleted user on 05/03/2018.
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- Created by Yinka F · Feb 20, 2018
- Copied by Yinka F · Mar 5, 2018
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