The Fundamentals of Chemistry
Across
- 5. elements in groups 3 to 12
- 7. opposite of metals; right of the periodic table
- 11. an accurate model of an electron's place
- 12. atoms of the same element that have a different number of neutrons
- 13. elements 90 to 103 in periodic table
- 14. combination of protons and neutrons
- 15. elements in group 17
- 18. a change in the amount of an atom's protons
- 21. number of protons in a nucleus
- 23. elements with properties of metals and nonmetals
- 24. horizontal row in the periodic table
Down
- 1. elements 58 to 71 in the periodic table
- 2. an uncharged particle
- 3. when an atom loses an electron
- 4. earth metals in group 2
- 6. inert gases in group 18
- 8. vertical column in the periodic table
- 9. process by which atoms produce energy
- 10. positively charged particle
- 13. reactive metals in group 1
- 16. a negatively charged particle
- 17. when an atom gains an electron
- 19. formed when an atom loses or gains an electron
- 20. the approximate mass of a proton or neutron
- 22. elements that are shiny and good conductors