Practice 2. Neutrons (3.2.1.2) - Elements and the Periodic Table: Nature's Organization
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2. Neutrons

Practice - 2. Neutrons

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the electric charge of a neutron, and where is it located in the atom?

  • Answer: A neutron has a charge of 0 (it is neutral) and is located inside the central nucleus of the atom.
  • Hint: Remember the "Neutral Neutron" memory aid.

💡 Hint: Remember the "Neutral Neutron" memory aid.

Question 2 Easy

Who discovered the neutron, and in what year?

  • Answer: James Chadwick discovered the neutron in 1932.
  • Hint: Look at the "Properties and Discovery" section.

💡 Hint: Look at the "Properties and Discovery" section.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following is the correct symbol for a neutron?

  • Type: mcq
  • Options: , , ,
  • Correct Answer:
  • Explanation: The 'n' stands for neutron and the '0' superscript represents its neutral charge.
  • Hint: Look at the property table.
* **Correct Answer**: * **Explanation**: The 'n' stands for neutron and the '0' superscript represents its neutral charge. * **Hint**: Look at the property table.

💡 Hint: Look at the property table.

Question 2

Neutrons have significantly less mass than protons.

  • Type: boolean
  • Options: True, False
  • Correct Answer: False
  • Explanation: Neutrons have a relative mass of ~1 amu, which is almost the same as (and actually slightly more than) a proton.
  • Hint: Check the "Relative Mass" in the property table.
True
False * **Correct Answer**: False * **Explanation**: Neutrons have a relative mass of ~1 amu
which is almost the same as (and actually slightly more than) a proton. * **Hint**: Check the "Relative Mass" in the property table.

💡 Hint: Check the "Relative Mass" in the property table.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

The Stability Balance: If a nucleus has too many protons and not enough neutrons, it becomes unstable. Describe what happens to the electrostatic forces in this scenario.

  • Solution: Without enough neutrons to provide the Strong Nuclear Force and act as a buffer, the electrostatic repulsion between the positively charged protons would become stronger than the forces holding them together. This causes the nucleus to be unstable and likely undergo radioactive decay to reach a more stable state.
  • Hint: Review the "Glue Particles" narrative.

💡 Hint: Review the "Glue Particles" narrative.

Challenge 2 Hard

Identify the number of protons, neutrons, and electrons in a neutral atom of (Uranium-235).

  • Solution:
  • Protons (): 92 (The bottom number).
  • Electrons: 92 (In a neutral atom, electrons = protons).
  • Neutrons (): .
  • Hint: Mass Number () is the top number; Atomic Number () is the bottom.

💡 Hint: Mass Number () is the top number; Atomic Number () is the bottom.

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Reference links

Supplementary resources to enhance your learning experience.