Atom Quiz: questions and answers
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1. What is an atom?
The smallest constituent unit of ordinary matter
2. What is the atom's composition?
Nucleus and electrons
3. Where is the 99.94% of an atom's mass?
Nucleus
4. What is the electric charge of neutrons?
None
5. What is the most abundant kind of atom?
Hydrogen atoms
6. Where does the word "atom" come from?
The Greek "undivided"
7. How are atoms classified?
By the numbers of protons or neutrons
8. Who was the first to publish the theory that all matter is made by atoms?
Robert Boyle
9. What's smaller than an atom?
Subatomic particles
10. What makes atoms stick together?
Electric charge