Across
- 2. result
- 4. mass/neutrons plus the protons
- 7. modest or low view of ones own importance humbleness
- 9. electrons/outer most electrons
- 10. attention
- 12. clouds/where the electrons
- 14. a change
- 17. vigorous or determined attempt
- 18. of conservation of mass/the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed
- 19. trend/specific patterns that are present in the periodic table
- 20. number/number of protons and electrons
- 21. formula/expression
Down
- 1. multiplier or factor that measures some property
- 2. period/row,horizontal
- 3. change/have a dramatically different appearance even though the chemical composition of the substance remains unchanged
- 5. but nonmetal at the same time,zig zag line
- 6. of being honest and having strong moral principles
- 8. combined
- 10. reactive
- 11. change/a change of chemical reaction
- 13. gas/last group and not reactive
- 15. particle
- 16. metals/1st group,more reactive