Shapes of Molecules Flashcards

1
Q

What is the bond angle of trigonal planar and how many lone + electron pairs does it have?

A

Bond angle - 120
Electron pairs - 3
Lone pairs - 0

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2
Q

What is the bond angle of tetrahedral and how many lone + electron pairs does it have?

A

Bond angle - 109.5
Electron pairs - 4
Lone pairs - 0

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3
Q

What is the bond angle of trigonal bipyramid and how many lone + electron pairs does it have?

A

Bond angle - 120 and 90
Electron pairs - 5
Lone pairs - 0

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4
Q

What is the bond angle of bent/ v shaped and how many lone + electron pairs does it have?

A

Bond angle - 104.5
Electron pairs - 4
Lone pairs - 2

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5
Q

What is the bond angle of trigonal pyramid and how many lone + electron pairs does it have?

A

Bond angle - 107
Electron pairs - 4
Lone pairs - 1

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6
Q

What is the bond angle of bent and how many lone + electron pairs does it have?

A

Bond angle - 117.5
Electron pairs - 3
Lone pairs - 1

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7
Q

What is the bond angle of octahedral and how many lone + electron pairs does it have?

A

Bond angle - 90
Electron pairs - 6
Lone pairs - 0

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8
Q

How would you explain the shape of molecules? Give an example of a sentence using SiH4.

A

There are 4 bonding pairs of electrons around the central atom and no lone pairs.
These repel equally resulting in a tetrahedral shape of bond angle 109.5.

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