Skip to main content

Back to the full dot-point answer

SingaporePhysicsQuick questions

Atomic and Nuclear Physics

Quick questions on The nuclear model of the atom explained: O-Level Physics

4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What are isotopes?
Show answer
Isotopes are atoms of the same element with the same proton number but different nucleon numbers, that is, the same number of protons but different numbers of neutrons. They have identical chemistry (same protons and electrons) but different masses.
What is q1?
Show answer
State what the proton number and nucleon number of an atom tell you. [2 marks]
What is q2?
Show answer
An atom is 1840Ar^{40}_{18}\text{Ar}. State the number of protons and neutrons. [2 marks]
What is q3?
Show answer
Define an isotope. [2 marks]

Have a question we have not covered?

This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.

All PhysicsQ&A pages