Periodic Table Vocabulary

1234567891011121314151617181920212223242526272829
Across
  1. 3. Can be turned into a wire without breaking
  2. 5. Number Protons + Neutrons = ________
  3. 6. Number of atoms in an element.
  4. 9. Neutrally charged located in the nucleus.
  5. 13. A group of two or more atoms held together by chemical bonds representing the smallest particle of a pure substance that retains its chemical properties
  6. 16. Shiny, malleable, reactive elements
  7. 17. A substance formed by two or more different elements chemically joined in a fixed ratio.
  8. 20. Stable, Noble gassesUnstable Reactive
  9. 22. neutron charge
  10. 23. proton charge
  11. 24. Non reactive
  12. 25. Mix of Nonmetals and Metals
  13. 27. The electrons in the outermost shell of an atom that are involved in chemical bonding
  14. 28. Number of protons
  15. 29. Unstable
Down
  1. 1. Number of molecules
  2. 2. Charge that an atom needs to be stable. (gain or lose)
  3. 4. A mix of elements that keep their properties and can be physically separated. (saltwater)
  4. 7. A single type of matter made up of only one kind of particle
  5. 8. Creator of Periodic Table, organized it by elements weight
  6. 10. A pure substance made up of only one type of atom
  7. 11. The basic building block of all matter representing the smallest particle of a pure substance that retains its chemical properties
  8. 12. Columns # of valence
  9. 14. Center of an atom, protons and neutrons are there.
  10. 15. Located in the nucleus of an atom, also the atomic number, positively charged.
  11. 18. rows # of of circles, energy levels, orbitals
  12. 19. Can be pounded ( answer: malleable)
  13. 21. electron charge
  14. 26. All three states of matter, brittle