49. if an atom contains 13 protons, then it has (2.4)
a. 13 electrons. b. 26 electrons. c. 13...
Physics, 14.01.2020 20:31 billgray2571
49. if an atom contains 13 protons, then it has (2.4)
a. 13 electrons. b. 26 electrons. c. 13 neutrons.
d. 26 neutrons,
Answers: 1
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