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kupik [55]
3 years ago
5

The atomic number and the mass number of 18 and 40. Write the information conveyed by this statement.​

Chemistry
1 answer:
VashaNatasha [74]3 years ago
8 0
There are 18 protons and electrons and 22 neutrons in the atom
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\boxed{\boxed{x \approx 1.672*10^{23}\:atoms}}\end{array}}\qquad\checkmark

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