Atomic structure and radioactivity quiz

Quiz Description

Revising Atomic structure and Radioactivity with quizzes

(Simple Atomic Structure and Radioactivity quizzes for students going in for the GCE, GCSE, and necta)

Welcome to gcequiz platform, the perfect place to test your knowledge.

In this section, our point of focus will be Atomic structure and Radioactivity. Here, you'll get to study the structure of the atom, radioactive calculations such as half-life, etc Below are ready-made quizzes to assist you in your revision. Before that, let's look at the definition of the various key terms:

 An atom is the smallest unit of matter that forms a chemical element. The size of an atom is too small (about 100pm) and it is made up of neutral ions or atoms. A standard atom has a nucleus (made up protons and neutrons), and at least one or more electrons. A normal atom is electrically neutral, due to the equality in number between the positive and the negative charges. When there is a difference in charges, it is known as an ion.

Definition of some terms

Nucleus: This is a collection of neutral and positive subatomic particles.

Shell: An orbit followed round the nucleus by electrons.

Nucleons: The subatomic particles found in the nucleus (protons and neutrons)

Neutron: Subatomic particle (nucleon) with no net charge at all.

Electron: This is the subatomic particle (nucleon) with a negative charge.

Proton: This is the subatomic particle with a positive charge.

Valency: The number of electrons on the outermost shell of an atom.

Atomic number: This is the number of protons in the nucleus of one atom of an element.

Mass Number: Total number of protons and neutrons.

Isotope: Atoms of the same element with the same atomic number but different mass numbers.

Radioactivity: It is the spontaneous release of radiation.

During the exams, students are expected to have a clear understanding of atomic structure and radioactivity, as they will be tested on it. For more exciting quizzes, click here.

This platform is here to assist students to prepare well for their exams by providing adequate revision questions. For more information and quizzes, visit

Feature Image

Atomic structure and radioactivity quiz