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Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

What is the value of keq for the reaction expressed in scientific notation

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?