AP Chem exam

Isoelectronic

Having the same number of electrons

Smaller

Positive ions (cations) tend to be _____ than negative ions (anions)

Tetrahedral

4 atoms touching , 0 lone pairs

109.5°

Tetrahedral bond angle

trigonal pyramidal

3 atoms touching, 1 lone pair

109.5°

trigonal pyramidal bond angle

Bent

2 atoms touching, 2 lone pairs

104.5°

Bent bond angle

trigonal planar

3 atoms touching, zero lone pairs

120°

trigonal planar bond angle

Bent / angular

2 atoms touching, 1 lone pair

120°

Bent/ angular bond angle

Linear

2 atoms touching, zero lone pairs

180°

Linear bond angle

trigonal bipyramidal

5 atoms touching, zero lone pairs

90° and 120°

trigonal bipyramidal bond angles

See -saw

4 atoms touching, 1 lone pair

90° and 120°

See-saw bond angle

T-shaped

3 atoms touching, 2 lone parr's

90°

T-shaped bond angle

Octahedral

6 atoms touching, zero lone pairs

90°

Octahedral bond angle

Square pyramidal

5 atoms touching, 1 lone pair

90°

Square pyramidal bond angle

Square planar

4 atoms touching, 2 lone pairs

90°

Square planar bond angle

Zero

[M] what order?

1st order

In [m] what order?

2nd order

1/ [m] what order?

Positive

Rate constant is always a __ value

[H30+][OH-]

Kw =

1.0×10^-14

At 25°C, Kw =

Rotation

Microwave radiation causes__ of molecules

Vibration

Infrared radiation causes- _- of molecules

Transition into different energy levels

Uv/visible radiation causes electrons to

O ←