Across
- 2. Most elements are this
- 3. Many or few atoms combine into something new or more of it
- 5. Number of proton/electron in element, (two words)
- 7. Brittle, non ductile/malleable poor conductor
- 10. Mass of molecule (two words)
- 11. Reaction occurs when layer of metal is bonded to surface of another substance usually metal
- 12. Positive charge center
- 13. Space outside nucleus where electrons exist
- 14. Far right on table not reactive
- 16. Electrons in outermost orbital, (two words)
- 20. Smallest part of element
- 21. Positive charge in nucleus
- 22. Substance naturally formed or manmade, building block
- 23. Move around nucleus negative charge
- 24. Letters defying the element
Down
- 1. Result of two reactants
- 2. Properties cross of metal and nonmetal conductive
- 4. Creator of periodic table (two words)
- 6. Columns of elements up and down on periodic table
- 7. Neutral charge in nucleus
- 8. Energy released in heat
- 9. Anything can change into the three states of matter
- 15. Rows of elements on periodic table
- 17. Energy absorbed cold
- 18. At least two atoms or different elements combine
- 19. Put together to make something