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Home Q & A Board Biology-Related Homework Help General Biology
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RUNNER84 RUNNER84
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6 years ago
The chemical behavior of an atom is determined most directly by the:a.
   atomic number.
  b. atomic weight.
  c. number of neutrons.
  d. number of energy levels.
  e. number of valence electrons

Question 2

The location and/or metabolism of a substance such as a hormone or drug can be followed in the body by labeling the
  substance with a(n):
  a. acid
  b. isotope
  c. element
  d. radioisotope
  e. DNA molecule
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destiny_remydestiny_remy
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6 years ago
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RUNNER84 Author
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#2
6 years ago
This is very helpful, my teacher this year is not good
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