phillipsl21
phillipsl21 phillipsl21
  • 18-12-2019
  • Chemistry
contestada

Use the table to determine the mass number of element A.

Use the table to determine the mass number of element A class=

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cortysousa cortysousa
  • 18-12-2019
# of protons + # of neutrons = mass
9 + 10 = 19
the answer is D
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