Basic Chemistry

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Across
  1. 3. Negatively charged ions?
  2. 6. Molecules bond in which atoms share electrons?
  3. 9. Uncharged or neutral particles?
  4. 11. How many electrons can hold second shell?
  5. 12. When two or more atoms combined chemically together it is called?
  6. 13. The number of ______ is always equal to the number of electrons.
  7. 15. Atom is the basic building block of all_____?
  8. 17. Compounds formed by ionic bonding?
  9. 18. Location of the electrons?
Down
  1. 1. Outermost shell in the atom?
  2. 2. Charged particles are called?
  3. 4. How many electrons in the first shell that is close to nucleus?
  4. 5. What is the name of chemical symbol Mg?
  5. 6. First letter of a chemical symbol is always__________?
  6. 7. Two or more different atoms bind together to form molecule?
  7. 8. Element that have same # of protons but different # of neutrons?
  8. 10. Positively charged atom?
  9. 12. Anything that occupies space and has mass?
  10. 14. Proton and electrons located in ?
  11. 16. Chemical shorthand called atomic______?