Biology Biochemistry

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Across
  1. 2. any atom or group of atoms that bears one or more positive or negative electrical charges
  2. 4. one of the three basic subatomic particles, positive charge
  3. 7. negative charge
  4. 8. no charge
  5. 10. a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative
  6. 12. a type of chemical bond that is formed when electrons are shared equally between two atoms
  7. 14. a type of chemical bond in which valence electrons are lost from one atom and gained by another
Down
  1. 1. formed by the equal sharing of electrons from both participating atoms
  2. 3. a substance that can't be broken down into a simpler format
  3. 4. occurs when atoms are shared unequally in a covalent bond Man's best friend
  4. 5. the basic building block of chemistry
  5. 6. atoms with the same number of protons but different numbers of neutrons
  6. 9. a material formed by chemically bonding two or more chemical elements
  7. 11. the attraction of molecules for other molecules of the same kind
  8. 13. the attraction of molecules of one kind for molecules of a different kind