Chapter 2 A&P

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Across
  1. 4. two or more different elements chemically bonded together
  2. 6. an ion that has additional electrons
  3. 7. carries no electrical charge
  4. 9. two or more atoms chemically joined together
  5. 12. anything that has more and takes up space
  6. 14. smallest functional particle of an element
  7. 15. fundamental substance of matter
  8. 16. oppositely charged ions attract
  9. 19. atoms share electrons
  10. 21. atoms of the element with the same atomic number, but different atomic weights
  11. 23. number of protons in the atom
Down
  1. 1. single positive charge
  2. 2. single negative charge
  3. 3. make up 99.9% of our body
  4. 5. slightly positive end of a polar molecule weakly attracts to the slightly negative end of another molecule
  5. 8. make up less than .1% of our body
  6. 10. an ion that is deficient in electrons
  7. 11. sum of protons and neutrons in one atom
  8. 13. the science that exams the composition and interactions of matter
  9. 17. atoms equally share electrons
  10. 18. atom that readily gains or lose electrons
  11. 20. chemistry of living things
  12. 22. unequal sharing of electrons