Across
- 3. Elements combined that are not chemically bonded
- 4. A yellow powder which is yellow and not hard
- 5. Any change to the physical properties of matter
- 7. In the first 20 elements on periodic table, there are ... metals
- 13. Alloy made from mixing copper and tin
- 15. Total amount of known elements
- 17. Allow made by iron and carbon
- 19. Negatively charged particles
- 21. How many elements were made in the laboratory?
- 25. In the first 20 elements on the periodic table, there are ... non-metals
- 26. Atoms with electrical charge
Down
- 1. Any change to the physical properties of matter
- 2. The first person to make the periodic table
- 6. Mixtures of metal
- 8. The center of an atom
- 9. 2 nitrogen atoms bonded
- 10. Anything that has mass and takes up space
- 11. Rows in the periodic table
- 12. Joined together
- 14. One type of atoms bonded together
- 16. Electrically neutral particles
- 18. Elements combined that are chemically bonded
- 20. Positively charged particles
- 22. 2 hydrogen atoms bonded with oxygen
- 23. Tiny particle, cannot be divided
- 24. Columns in a periodic table