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Journey Inside the Atom

Science · CBSE Class 9 · English Medium · 15 questions and answers

Sample questions

Q: Who discovered the electron?

A: J. J. Thomson.

Q: What is the charge on an electron?

A: An electron carries one unit of negative charge.

Q: What is the charge on a proton?

A: A proton carries one unit of positive charge.

Q: What is the charge on a neutron?

A: A neutron has no electric charge.

Q: Where are protons and neutrons located in an atom?

A: They are located in the nucleus.

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