Assessing your learning
Test your understanding of atoms and sub-atomic particles.
1. An atom is defined as:
2. The central part of the atom is called the:
3. Which particles carry a positive charge?
4. Electrons are found:
5. Which particle has no electrical charge?
6. The atomic number of an element equals the number of:
7. Electron configuration describes:
8. Isotopes are atoms that:
