Shapes Of Molecules And Ions Flashcards
(33 cards)
what electron pairs have the biggest repulsion angles?
lone pair and lone pair
what electron pairs have the second biggest repulsion angles?
lone pair and bonded pair
what electron pairs have the smallest repulsion angles?
bonded pair and bondedpair
what is the shape of the molecules for 2BPs?
linear
what is the size of the angle for 2BPs?
180 degrees
what is the shape of the molecules for 3BPs and 0LPs?
trigonal planar
what is the size of the angle for 3BPs and 0LPs?
120 degrees
what is the shape of the molecules for 2BPs and 1LPs?
non-linear
what is the size of the angle for 2BPs and 1LPs?
118 degrees
what is the shape of the molecules for 4BPs and 0LPs?
tetrahedral
what is the size of the angle for 4BPs and 0LPs?
109.5 degrees
what is the shape of the molecules for 3BPs and 1LPs?
trigonal pyramidal
what is the size of the angle for 3BPs and 1LPs?
107 degrees
what is the shape of the molecules for 2BPs and 2LPs?
non-linear
what is the size of the angle for 2BPs and 2LPs?
104.5 degrees
what is the shape of the molecules for 5BPs and 0LPs?
trigonal bipyramidal
what is the size of the angle for 5BPs and 0LPs?
90 degrees and 120 degrees
what is the shape of the molecules for 6BPs and 0LPs?
octahedral
what is the size of the angle for 6BPs and 0LPs?
90 degrees
what does the wedge line in the shape of molecules represent?
a bond pointing towards you
what does the broken line in the shape of molecules represent?
a bond pointing away from you
why do the molecules have specific shapes?
- the number of bonding regions/ bonded pairs and lone pairs
- the electron pairs repel to give the molecules specific shapes
what is the shape of an ammonium ion?
tetrahedral, 109.5 bond angle
what is the shape of a carbonate ion?
trigonal planar, 120 bond angle
