Thomspon Atomic Model

1. What did J.J. Thomson prove about atoms?

• They are the smallest particles of matter.

• They contain negatively charged particles.

• They are made entirely of positive charges.

• They are not neutral.

2. According to Thomson, why is an atom neutral?

• It contains more positive charges than negative.

• It contains equal numbers of positive and negative charges.

• It has no charges at all.

• It has only negative charges.

3. What is the name of the model developed by Thomson to visualize the atom?

• Nuclear model

• Solar system model

• Plum pudding model

• Quantum model