Across
- 4. decay alpha particles, beta particles,
- 5. in the periodic table is arranged into V
- 7. properties metals include luster, malleability , time ability, DUCTILITY, conductivity
- 9. the ability of an object to carry electric current v
- 14. the smallest possible pieces V
- 15. material is one that can be pulled out or drawn into long wires v
- 20. sum of the protons and neutrons in the atom V
- 21. material is one that can be hammered or rolled into flat sheets v
- 22. elements symbol is an abbreviation of the elements name V
- 23. isotopes can help you find the age of fossils
- 26. an element is the average mass of all the isotopes of all the isotopes of that element V
- 28. negatively charged particles V
- 30. the elements in a column for a v
Down
- 1. Mendeleev knows the pattern
- 2. positively charged particles in an atoms nucleus V
- 3. decay can change the identity of an atom
- 6. they can be predicted from its location on the periodic table
- 7. arrangements of elements
- 8. rays
- 10. no electric charge V
- 11. periodic table is arranged and classified by alkaline metals, alkaline earth metals, transitional metals, metals in mixed groups, in last nights and actinides
- 12. the ability of an object to transfer heat v
- 13. shiny in reflective v
- 16. they are poor heat, conductors
- 17. carbon, family, nitrogen, family, oxygen, family, halogen, family, noble gases, and hydrogen
- 18. periodic table has a atomic number and chemical symbol name in atomic mass for each element
- 19. electrons movement or the specific amount of energy it has V
- 24. models that developed from experimental evidence
- 25. atoms with the same number of proton and a different number of neutrons V
- 27. number of protons in an nucleus
- 29. packed within a small region in its center which are positive charge V