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An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
20
The answer is 25

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jsmartojax

Answer:

mass number is 25

Explanation:

mass number is the number of proton and nuetron in an atom. Hence,

it is mathematically expressed as

mass number = proton + nuetron

mass number = 10+15=25

The mass number is 25

Given information:

An atom has 10 protons, 15 neutrons and 10 electrons

Calculation of the mass number:

We know that

mass number = proton + nuetron

mass number = 10+15

=25

Learn more about the mass here: https://brainly.com/question/17455772

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