Across
- 5. Helium nucleus that comes out of the nucleus of a large atom
- 7. formed from delocalized valence electrons that hold the metal atoms in place
- 11. Change that properties of the material change but the identity doesnt
- 14. Form an extended three dimensional array of alternating cations and anions
- 15. Same element with same atomic number with different neutrons
- 16. During a chemical reaction the mass of reactions equals mass of products
- 18. Table that shows information about the elements
- 20. Study of earth and the rocks that make it up
- 21. Periodic group that has physical and chemical properties of both metals and non metals
- 23. Has mass and takes up space
- 24. Positive charge
- 25. Energy out of the nucleus
- 27. Diagram that shows the orbital spin
- 29. Rule that states that electrons will spread out to fill all orbitals
- 32. Group 18
- 34. Group 1
- 35. A group of atoms with a charge
- 36. Group 2
- 37. Studing the greater understanding of the theories behind how matter is changing
- 39. Number of protons in an element
- 40. Group 3
Down
- 1. Beggining of chem
- 2. Can be seen, touched, and directly measured
- 3. Study of motion and forces
- 4. Group 17
- 6. Chemical bond that results from sharing the valence electrons
- 8. A compound always contains the same elements in the same proportion by mass
- 9. Characteristic of a substance that can be observed or measured without changing the substance
- 10. High speed electron from the nucleus
- 12. Changes the identity of the substance or makes new substance
- 13. Neutral charge
- 17. Small particles that make up matter
- 19. Mixture of metals
- 22. The weighted average of all isotopes of an element
- 26. Studies directed toward a specific goal or application
- 28. Electron force that hols ions together
- 30. Negative charge
- 31. Study of the compostion of matter and the changes it undergoes
- 33. Total of protons and neutrons in an element
- 38. Study of living things