Bonding and structure- shape of molecules

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

What shape occurs when there are 2 bonding pairs and no lone pairs?

Back (Answer)

Linear

Front (Question)

What is the bond angle in linear molecules?

Back (Answer)

180

Front (Question)

Give an example of a substance with a linear shape

Back (Answer)

BeF2

Front (Question)

What shape occurs when there are 3 bonding pairs and no lone pairs?

Back (Answer)

Trigonal planar

Front (Question)

What shape occurs when there are 4 bonding pairs and no lone pairs?

Back (Answer)

Tetrahedral

Front (Question)

What shape occurs when there are 3 bonding pairs and 1 lone pair?

Back (Answer)

Trigonal pyramid

Front (Question)

What shape occurs when there are 2 bonding pairs and 2 lone pairs?

Back (Answer)

Bent/v-shape

Front (Question)

What shape occurs when there are 5 bonding pairs and no lone pairs?

Back (Answer)

Trigonal bipyramid

Front (Question)

What shape occurs when there are 6 bonding pairs and no lone pairs?

Back (Answer)

Octahedral

#10

Front (Question)

What is the bond angle in trigonal planar?

Back (Answer)

120

#11

Front (Question)

What is the bond angle in tetrahedral?

Back (Answer)

109.5

#12

Front (Question)

What is the bond angle in bent/v-shaped?

Back (Answer)

104.5

#13

Front (Question)

What is the bond angle in trigonal pyramid?

Back (Answer)

107

#14

Front (Question)

What is the bond angle in octahedral?

Back (Answer)

#15

Front (Question)

What is the bond angle in trigonal bipyramid?

Back (Answer)

90 and 120

#16

Front (Question)

Give an example of a molecule which has as octahedral shape?

Back (Answer)

SF6

#17

Front (Question)

Give an example of a molecule which has a trigonal bipyramidal shape

Back (Answer)

PF5

#18

Front (Question)

Give an example of a molecule which has a trigonal pyramid shape

Back (Answer)

NH3

#19

Front (Question)

Give an example of a molecule which has a trigonal planar shape

Back (Answer)

BH3

#20

Front (Question)

Relative to single bonds, how much do double bonds repel?

Back (Answer)

Equally

#21

Front (Question)

What shape of bonding is present in Carbon dioxide?

Back (Answer)

Linear

#22

Front (Question)

When representing an ion in 3D what must you remember to draw?

Back (Answer)

Square brackets around the structure and the charge in the top right corner outside the brackets

#23

Front (Question)

Explain why NH3 has a different shape to BH3

Back (Answer)

• BH3 does not have any lone pairs so has a bond angle of 120 • NH3 has one lone pair • Lone pairs repel more the bonding pairs so the atoms are pushed into a trigonal pyramid shape

#24

Front (Question)

What conditions are needed for a bond to be non-polar?

Back (Answer)

• the bonding atoms to be the same - the bonded atoms have the same or similar electronegativity