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Atomic structure

Chemistry · Foundations

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About this practice set

Atomic structure is part of Chemistry (Foundations). Questions are generated with new numbers each time you practise. Levels available: Easy. After you answer, an explanation is shown.

Example questions

A taste of what you will practise. Answers are revealed after you try.

  • Easy

    An atom of Helium (He) has an atomic number of 2 and an approximate mass number of 4. How many protons does a neutral atom contain?