Across
- 3. Amount of matter in an object.
- 4. Electron occupy lower energy.
- 7. More than one component
- 8. Negatively charged subatomic particle.
- 9. Positive ions.
- 13. Schematic arrangement of elements.
- 14. Negative ions.
- 15. Measurement used in determining the coldness and hotness of an object.
- 16. Composed of anions and cations.
- 17. Does not have shiny appearance.
- 18. Single electron.
- 20. ___ = Degree celsius + 273
- 21. Last name who introduced triad method
- 22. Uniform system of units for the sciences.
- 23. Contains proton and neutrons.
- 25. Electron in the outermost shell.
- 26. Study of matter its composition and properties.
- 28. Consists of positive and neutral charge at the center and surrounded by electron clouds.\
- 29. A region where an electron is confined.
Down
- 1. Same element with different number of neutrons.
- 2. Neutral subatomic particle.
- 5. Block consist of transition metals.
- 6. Reaction releasing energy.
- 10. Sharing between two non metals.
- 11. Elements in group 8 of the periodic table.
- 12. base formers.
- 13. Contains single component.
- 19. Unshared electron pair.
- 24. Indicates number of electron shells or rings.
- 27. Good conductors of heat.