Across
- 1. Two or more different types of atoms chemically bonded together
- 3. The most basic building block of all matter
- 5. Anything that has mass and takes up space
- 7. Group of chemical symbols and numbers that represent the elements and number of atoms that make up a molecule or compound
- 8. Substance made of only one type of atom
- 9. Small numbers that represent how many there are of a specific atom
- 10. 1 or 2 letters that represent the element
Down
- 2. A system for arranging the elements that includes facts about each one
- 4. Big number in front that represents how many molecules there are
- 6. A group of atoms held together by chemical bonds that can be the same type of atom or different