Answer:
Stretching vibration, and
Bending vibration (Rocking, wagging, Twisting and Scissoring)
Explanation:
- Stretching vibration: this causes change in the length of a bond
- Bending vibration: this causes change in the angle between two bonds
Bending vibration can occur as rocking, wagging, twisting and Scissoring vibration
2a) Rocking vibration: this causes change in angle between group of the atoms
2b) Wagging vibration: this causes change in angle between the plane of a group of atoms
2c) Twisting vibration: this causes change in the angle between the planes of two groups of atoms.
2d) Scissoring vibration: this causes the movement of two atoms toward and away from each other
