Across
- 3. subatomic particle with a negative electrical charge
- 6. Chemically joined substance made from two or more different elements
- 8. a number in front of a chemical symbol that shows how many atoms or molecules are involved in the reaction.
- 10. a link between atoms in molecules or compounds
Down
- 1. subatomic particle with a positive electrical charge
- 2. A compound consisting entirely of hydrogen and carbon
- 4. a small number on the bottom right of a symbol that refers to the number of atoms of the element
- 5. A pure substance consisting of only one type of atom
- 7. a group of two or more atoms that are bonded together.
- 9. The basic unit of a chemical element