Atomic structure Quiz
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5 questions, one answer each
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1. How many neutrons are in an atom of ?
- A. 11
- B. 12
- C. 23
- D. 34
2. Which statement about electrons is correct?
- A. They are in the nucleus and have charge +1
- B. They have a relative mass of 1
- C. They have charge -1 and a very small mass
- D. They have no charge
3. Which two atoms are isotopes of the same element?
- A. 6 protons, 6 neutrons and 6 protons, 8 neutrons
- B. 6 protons, 6 neutrons and 7 protons, 7 neutrons
- C. 6 protons, 6 neutrons and 8 protons, 6 neutrons
- D. 7 protons, 7 neutrons and 8 protons, 8 neutrons
4. In the gold foil experiment, what did the few alpha particles that bounced back show?
- A. Atoms are solid balls
- B. Electrons are very heavy
- C. There is a tiny, dense, positive nucleus
- D. Alpha particles are neutral
5. Which model of the atom had electrons embedded in a ball of positive charge?
- A. Dalton's model
- B. Plum pudding model
- C. Nuclear model
- D. Bohr model