Across
- 2. when an atom shares an electron in its outermost energy level with another atom
- 3. contains atoms of 2 or more elements
- 5. made up of only one type of atom and cannot be broken down by normal chemical or physical means
- 6. evenly mixed throughout
- 9. describes a change that occurs when one substance reacts with another
- 11. anything that has mass and takes up space
- 14. in fixed positions relative to each other; tightly packed and can't move around each other
- 15. atoms of the same element with different number of neutrons
- 17. have more energy than solids or liquids
- 19. 2 or more substances that are not chemically combined
- 20. have a negative electrical charge
- 23. equal to the number of protons found in an atom
- 24. the act or state of sticking together tightly
- 26. have no electrical charge
- 27. have a positive electrical charge
- 28. a group of atoms connected by covalent bonds
- 29. whats being dissolved
Down
- 1. not mixed evenly
- 4. made up of only one kind of atom
- 7. particles that are attracted to each other , but aren't in fixed positions
- 8. a chemical bond formed when one atom gives up one or more electrons to another atom
- 10. a bond exclusively between metals
- 12. forces that hold the atoms together in compounds
- 13. the total number of neutrons in an atom
- 16. what's doing the dissolving
- 18. the most common state of matter in the universe
- 21. electrically charged atoms
- 22. the measure of how compact the mass in a substance or object is
- 23. the basic unit or building blocks of matter
- 25. when a hydrogen atom is attracted to a strongly electronegative atom
- 27. properties of matter that do not change a substance into a new substance