Periodic Table

1234567891011121314151617181920212223242526
Across
  1. 10. Name of groups 3-12 (all one word)
  2. 13. Two atoms of the same element with different number of neutrons
  3. 14. Family name for group 1
  4. 15. Family with full outer cloud (all one word)
  5. 19. Widely recognized as designing the first periodic table
  6. 20. Smallest atom in the noble gases
  7. 21. The least reactive family
  8. 22. Family sometimes known as 'salt formers'
  9. 23. Number of electrons the p sublevel can hold
  10. 24. Good conductors of electricity, malleable and ductile
  11. 25. Formed when an atom gains two electrons
  12. 26. Common examples are boron, silicon and germanium
Down
  1. 1. A halogen with 18 neutrons
  2. 2. Neutral particle found in the nucleus
  3. 3. Arranged periodic table based on atomic number
  4. 4. Positively charged ion
  5. 5. Positively charged particle in the nucleus
  6. 6. Term for the outer electron cloud
  7. 7. Most massive element in the alkaline earth metals.
  8. 8. Term to describe horizontal rows on the periodic table
  9. 9. Another name for a column in the periodic table
  10. 10. Elements numbers 93 and above
  11. 11. An atom with a net charge
  12. 12. The most reactive family of metals
  13. 16. Name for second family (all one word)
  14. 17. Negatively charged ion
  15. 18. Also known as the oxygen family
  16. 19. Atomic symbol is Hg