# Homework Help: Electrostatic Series

1. Jan 5, 2009

### jwj11

1. The problem statement, all variables and given/known data

This is just a thought experiment and I wanted to know if my answer is correct.

If I...
1) Tie a string to one of the plastic combs and suspend this comb from the edge of a table
2) Then rub the suspended plastic comb in wool to give it a negative charge
3) and If I bring a piece of glass near the charged suspended comb
4) or if I bring a piece of rubber near the charged suspended comb

Then for the glass I will observe that the charged comb will move away from the glass.

And for the rubber I will observe that the charged comb moves toward the rubber.

This is because glass has low electronegativity and rubber has a high electronegativity on the electrostatic series?

Would my hypothesis be correct?

2. Jan 5, 2009

### Carid

hey jwj11,
Why do a thought experiment when you can do a real one. Much more fun and more likely to give the right answer....

3. Jan 5, 2009

### jwj11

because when I did it both of the materials were attracted to the charged comb? How am I suppose to differentiate which is more electronegative?

4. Jan 6, 2009

jwj11,