Across
- 2. shiny, easily shaped material
- 4. anything that is not a metal
- 6. decay when an unstable atomic nucleus looses energy by radiation
- 7. gathering of things
- 8. when an unstable atom releases radiation
- 12. element that creates or forms salt
- 14. number shows the number of protons in an atom
- 15. cloud space where electrons are found
- 17. negatively charged particle
- 20. atom with more or less neutrons
- 22. metallic chemical element that has negative ions
- 24. chemical element similar to transition metals
Down
- 1. ion atom with more protons than electrons
- 2. mixture of metals and nonmetals
- 3. groups on the table of elements
- 5. positively charged particle
- 9. shows an atoms mass
- 10. metal chemical metal element containing several different elements
- 11. atom with more or less electrons
- 13. particle with no charge (neutral)
- 16. center of an atom
- 18. ion atom with more electrons than protons
- 19. gasses gases with low reactivity
- 21. metals less reactive types of metal
- 23. metals element made of lithium, sodium, potassium, rubidium, cesium, and francium