Across
- 2. Basic unit of chemical element
- 5. The mass of a single atom
- 7. Atom with the same number of protons but different number of neutrons
- 10. The number of protons in the nucleus of it's atoms
- 11. A subatomic particle with a negative electric charge that is found in all atoms
- 13. A horizontal row of elements in the periodic table
- 16. An atom or group of atoms that have a positive or negative charge
- 17. A pure substance made up of only one type of atom
- 19. A negatively charged ion
- 21. Positively charged subatomic particle found in nucleus of an atom
- 22. A subatomic particle found within the nucleus of an atom
Down
- 1. State of matter which particles have no fixed shape or volume
- 3. Chemical element that exhibits some metal and some non-metal properties
- 4. Specific patterns that are present in the periodic table
- 6. A letter or pair of letters used to represent a chemical element
- 8. Gas, extremely low reactivity
- 9. A form of matter that takes the shape of it's container
- 12. An ion with a positive charge
- 14. Lustrous, good conductors of heat and electricity
- 15. Substance that maintains it's own shape and volume
- 18. Anything that has mass and takes up space
- 20. A column in the periodic table