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Atomic StructureStudy Notes

Atom structure — protons, neutrons, electrons

Part of Atomic Structure · GCSE GCSE Physics revision

This study notes covers Atom structure — protons, neutrons, electrons within Atomic Structure for GCSE Physics. Revise Atomic Structure in Atomic Structure for GCSE Physics with 13 exam-style questions and 25 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 13 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 2 of 13

Practice

13 questions

Recall

25 flashcards

GCSE Physics revision: atom structure showing protons, neutrons and electron shells
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Figure: Atom structure — protons, neutrons, electrons

Keep building this topic

Read this section alongside the surrounding pages in Atomic Structure. That gives you the full topic sequence instead of a single isolated revision point.

Mostly Empty SpaceInside the AtomStructure of the AtomAtomic Number and Mass Number

Practice Questions for Atomic Structure

What does the atomic number of an element tell you?

  • A. The number of neutrons in the nucleus
  • B. The total number of particles in the nucleus
  • C. The number of protons in the nucleus
  • D. The mass of one atom in grams
1 markfoundation

Describe the structure of an atom. Include the location and charge of the three main subatomic particles.

2 marksstandard

Quick Recall Flashcards

Why are atoms electrically neutral?
Atoms are electrically neutral because the number of protons (positive charges) equals the number of electrons (negative charges). The positive and negative charges cancel out.
What are isotopes?
Isotopes are atoms of the same element (same number of protons) with different numbers of neutrons. This means they have the same atomic number but different mass numbers.

13 questions on Atomic Structure — practise free

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Mostly Empty Space

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Inside the Atom