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kipiarov [429]
3 years ago
13

An element has 8 protons, 9 neutrons, and 8 electrons. its atomic number and its mass number, respectively, are

Chemistry
1 answer:
Rashid [163]3 years ago
3 0
Atomic number =number of protons =number Of electrons =8
mass number
=number of protons +neutrons=8+9=17
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