1.3. Shapes of Molecules and Polyatomic Ions Flashcards Preview

Advanced Higher Chemistry > 1.3. Shapes of Molecules and Polyatomic Ions > Flashcards

Flashcards in 1.3. Shapes of Molecules and Polyatomic Ions Deck (12)
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1
Q

What does VSEPR stand for?

A

Valence Shell Electron Pair Repulsion

2
Q

What is the VSEPR rule?

A

The shape of a molecule is effected by the repulsion of electron pairs.

3
Q

How do you calculate the number of pairs in a molecule?

A

Outer electrons of central metal atom + the amount of each addition atom / 2. If negative ion you add the charge. If positive ion you subtract the charge.

4
Q

If a molecule has 2 bonding pairs and no non-bonding pairs, what is its structure?

A

Linear.

5
Q

If a molecule has 3 bonding pairs and no non-bonding pairs, what is its structure?

A

Trigonal planar.

6
Q

If a molecule has 2 bonding pairs and 1 non-bonding pair OR 2 bonding pairs and 2 non-bonding pairs, what is its structure?

A

Bent.

7
Q

If a molecule has 4 bonding pairs and no non-bonding pairs, what is its structure?

A

Tetrahedral.

8
Q

If a molecule has 3 bonding pairs and 1 non-bonding pair, what is its structure?

A

Trigonal pyramidal.

9
Q

If a molecule has 5 bonding pairs and 1 non-bonding pair, what is its structure?

A

Trigonal bipyramidal.

10
Q

If a molecule has 3 bonding pairs and 2 non-bonding pairs, what is its structure?

A

T-Shaped.

11
Q

If a molecule has 6 bonding pairs and no non-bonding pairs, what is its structure?

A

Octahedral.

12
Q

If a molecule has 4 bonding pairs and 2 non-bonding pairs, what is its structure?

A

Square planar.