Across
- 3. What has a high electrical conductivity?
- 4. What types of metals are on the left side of the periodic table?
- 5. table What is the arrangement of the elements according to similarities in their properties?
- 6. What is the beam that traveled from the cathode to the anode?
- 8. What elements exhibit a wide range of both physical and chemical properties?
- 9. What is atomic mass unit prefixes?
- 10. What are nonmetals called?
- 12. What is the total numberof protons and neutrons in an atom?
- 14. What is a positivally charged particle of an atom?
Down
- 1. What is a tiny indivisble particle?
- 2. What type of metals are in group 2A?
- 7. What is a neutrally charged particle of an atom?
- 8. Who tested the theory of atomic stucture?
- 11. What is an element that has the same number of protons but different numbers of neutrons?
- 13. What is the central core of an atom?