Shapes of molecules Flashcards

1
Q

How do you know what shape the simple covalent molecule is?

A

The shape of simple covalent molecules depends on the number of bonds and the orientation of these bonds around the central atom.

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2
Q

What are the four shapes of covalent molecules called?

A

Linear
Angular
Trigonal pyramidal
Tetrahedral

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3
Q

For angular, trigonal pyramidal and tetrahedral molecules, what does it mean when the central atoms lie in the same group?

A

If the central atoms lie in the same group, they have the same shape. e.g. carbon and silicon both lie in group 4 so they both have 4 outer electrons. This means when they are bonded to the same type of atoms, they will have the same shape.

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