Across
- 3. anything that takes up space
- 5. Different substances not bonded together.
- 7. A positively charged particle located in an atom’s nucleus.
- 8. A group of atoms that are held together by bonds they act as a single unit.
- 10. A horizontal row in the periodic table of the elements.
Down
- 1. table: A table of elements, arranged by atomic number that shows that patterns in their properties.
- 2. A vertical column in the periodic table of the elements.
- 4. the smallest basic unit of matter
- 6. a substance that contains a single type of atom
- 9. A substance that contains two or more different types of atoms bonded together.