Across
- 3. are all elements in group 1 of the periodic table (except for hydrogen)
- 6. the ability to attract electrons within a compound
- 11. these are very reactive atoms found in group 2 of the periodic table
- 12. the size of a neutral atom
- 15. to bend easily and have the ability to be hammered flat
- 17. energy required to remove an electron to form an ion
- 19. Number of protons in hydrogen-3
- 20. which element is more reactive; K or Fe?
- 23. these elements have a full octet and therefore do not readily react with other atoms
- 25. the ____________ together the charges are, the greater the effective nuclear charge
- 26. meaning to break when hammered
- 27. these elements touch the staircase line and are semiconductors
Down
- 1. adding an electron creates a ___________ ion
- 2. outer shell electrons
- 4. these lie to the left of the staircase line - are shiny and conduct electricity
- 5. the most common element in the universe
- 7. the ability to be pulled into a wire
- 8. number of protons and neutrons in hydrogen-3
- 9. a charged particle
- 10. which has a smaller ionic radius? Br or Ni?
- 13. this is the most electronegative element on the periodic table
- 14. elements found in group 17 of the periodic table - the most reactive nonmetals
- 16. a negative ion (gain of electrons)
- 18. the vertical columns on the periodic table (tell us the number of valance electrons)
- 21. lie to the right of the staircase line - are dull and do not conduct electricity well
- 22. the horizontal rows on the periodic table (tell us the number of electron shells)
- 24. removing an electron creates a ___________ ion