Atoms, elements and compounds

12 questions

1. What is matter?
2. Match the following elements with their correct atomic number (found on the periodic table).
3. Melting ice is an example of ...
4. Match the subatomic particles with their correct charge.
5. Where is the majority of an atom's mass located?
6. The term "nucleus" is used in multiple subjects but refers to different things. What does the nucleus refer to in chemistry?
7. Which subatomic particles are the basic building blocks of atoms?
8. What defines an element?
9. How do chemists communicate chemical compositions universally?
10. Match the following terms with their definitions.
11. Hydrogen (H₂) is able to be described as ...
12. Everything around us is made of different combinations of ___, either on their own as elements, or in compound form.

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