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Dmitriy789 [7]
2 years ago
5

An atom of magnesium with 14 neutrons has a mass number of what ?

Chemistry
1 answer:
murzikaleks [220]2 years ago
5 0

Answer:

26

Explanation:

Given parameters:

Number of neutrons  = 14

Unknown:

Mass number  = ?

Solution:

The mass number of an atom is the sum of protons and neutrons in the atom.

 mass number = number of protons + number of neutrons

Since the atom here is magnesium, number of protons is 12

Mass number = 14 + 12  = 26

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