Across
- 1. form of matter with no definite shape, weight, or size
- 4. name for a column of the periodic table, based on number of valence electrons in atom
- 7. a variation of an atom based on loss or gain of an electron
- 9. form of matter that has a definite shape and volume
- 10. two or more elements combined chemically
- 12. a principle particle in an atom that has no electrical charge
- 14. chemical bond between two elements formed by sharing electrons
- 15. specific form of matter composed of only one type of atom
- 17. form of matter that does not have a definite shape but has a definite volume
- 18. the name for a row in the periodic table, determined by highest energy level where electrons can be found in an atom of that elements
Down
- 2. smallest form of matter
- 3. an atom that has lost an electron
- 5. positiviely charged particle found in the nucleus of an atom
- 6. an atom that has gained an electron
- 8. central core of an atom
- 11. a group of two or more atoms linked by a chemical bond
- 13. negatively charged particle in an atom
- 16. two or more elements that are combined physically rather than chemeically