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solniwko [45]
3 years ago
14

An atom with 39 protons and a mass number of 89 what is the number of neutrons

Chemistry
1 answer:
Liula [17]3 years ago
4 0

Answer:

50

Explanation:

the number of neutrons is gotten from the subtraction of the number of protons from the mass number

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The number of atoms present in 0.58 mole of magnesium, Mg is 3.49×10²³ atoms

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