Intro Chemistry
Across
- 4. The center of the atom.
- 8. A process that rearranged atoms to make new compounds.
- 9. A substance made of 2 or more atoms bonded together.
- 10. The type of energy that is stored in chemical bonds.
- 12. The property needed to do work or produce heat.
Down
- 1. When a reaction has an equal number of each element on both sides of the arrow it is called __________.
- 2. A particle in an atom with a neutral charge.
- 3. The smallest unit of a compound.
- 5. A pure substance made of only one kind of atom.
- 6. A particle in an atom with a negative charge.
- 7. The smallest unit of an element.
- 11. A particle in an atom with a positive charge.