Across
- 3. Atoms take the shape of their container in this state of matter
- 5. the negatively charged part of an atom
- 7. Atoms are freely flowing in this state of matter
- 9. a pure substance made up of only one type of atom
- 10. the neutrally charged part of an atom
- 11. A chart that organizes elements based on their atomic number
- 13. An element’s average number of protons and neutrons
- 17. the number of protons in an element- every element has a unique one of these
- 18. These changes break chemical bonds and rearrange matter into something new
- 19. the small numbers in a chemical equation to the right of each element
- 22. 2 or more elements chemically bonded together
- 23. 2 or more substances physically combined
Down
- 1. These change the size, shape, or state of matter
- 2. what you start with in a chemical reaction
- 4. the larger numbers in a chemical equation in front of each element
- 6. Outer shell electrons that determine whether or not an element likes to bond
- 8. The amount of matter in a given amount of space
- 11. the positively charged part of an atom
- 12. When there are equal numbers of each element on both sides of an equation we say it is…
- 14. basic building blocks of matter
- 15. when matter is allowed to escape during a chemical reaction
- 16. Mendeleev The scientist who organized the periodic table based on atomic number
- 19. Atoms are tightly packed in this state of matter
- 20. what is created as a result of a chemical reaction
- 21. when matter is not able to escape during a chemical reaction