Across
- 1. (Na)
- 4. a positively charged ion
- 6. krypton, xenon, and
- 7. fluorine, chlorine, bromine, iodine, and
- 9. something not
- 11. shell of the atom
- 13. to attract a bonding pair of electrons
- 16. molecule with a net electric charge
- 20. substances characterized by high electrical and
- 21. the distance between the nuclei
- 22. table of the chemical elements
- 24. hydrogen (H), lithium
- 25. a measure of the tendency of an
- 26. a column of elements in the
- 28. a negatively charged ion
- 30. helium, neon,
Down
- 2. any process by which electrically
- 3. helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine
- 5. atomic numbers show a periodic variation of
- 8. invented periodic table
- 10. the successive occupation of the orbitals in a
- 12. charged atoms
- 14. structure and of most of their properties
- 15. atoms or molecules are converted to
- 17. those of metals and solid nonmetals or
- 18. titanium, copper, nickel, silver, platinum, and gold
- 19. the elements when arranged in the order of
- 23. conductivity
- 27. element whose properties are intermediate
- 29. two identical atoms bonded together