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Chemistry > Molecule shapes > Flashcards

Molecule shapes Flashcards

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1
Q

What is electron pair repulsion theory

A

in a molecule lone pair/lone pair angles are the biggest, lone pair/bonding pair angles are second biggest and bonding pair/bonding pair angles are the smallest.

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2
Q

What is the shape and angle of a molecule with 2 bonding pairs

A

Linear shape

180°

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3
Q

Give 2 examples of linear molecules

A

BeCl2

CO2

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4
Q

What is the shape and angle of a molecule with 3 bonding pairs

A

Trigonal Planar

120°

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5
Q

Give an example of a trigonal planar molecule

A

BF3

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6
Q

What is the shape and angle of a molecule with 2 bonding pairs and 1 lone pair

A

Non-linear

Just under 120°

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7
Q

What is the shape and angle of a molecule with 4 bonding pairs

A

Tetrahedral

109.5

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8
Q

Give 2 examples of a Tetrahedral molecule

A

CH4

NH4+

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9
Q

What is the shape and angle of a molecule with 3 bonding pairs and 1 lone pair

A

Trigonal Pyramidal

107°

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10
Q

Give an example of a Trigonal Pyramidal molecule

A

NH3

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11
Q

What is the shape and angle of a molecule with 2 bonding pairs and 2 lone pair

A

Non-linear

104.5°

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12
Q

What is the shape and angle of a molecule with 5 bonding pairs

A

Trigonal Bipyramidal
3 x 120°
2 x 90°

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13
Q

Give an example of a Trigonal bipyramidal molecule

A

PCl5

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14
Q

What is the shape and angle of a molecule with 6 bonding pairs

A

Octahedral

90°

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15
Q

Give an example of a Octahedral molecule

A

SF6

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Chemistry (14 decks)

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