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spayn [35]
3 years ago
12

How many neutrons does element X have if its atomic number is 25 and its mass number is 85?

Mathematics
2 answers:
Lynna [10]3 years ago
5 0

Neutrons= Atomic Mass Number- Atomic Mass Number

So 85-25= 60

Natalija [7]3 years ago
3 0

<u>Answer:</u>

60 neutrons

<u>Step-by-step explanation:</u>

We are given that the atomic number of an element X is 25 and its mass number is 85 and we are find the number of neutrons this element has.

We will use the following formula to find the number of neutrons:

<em>Neutrons = Atomic mass number - Atomic number</em>

So substituting the given values in the above formula to get:

Number of neutron = 85 - 25 = 60

Therefore, element X has 60 neutrons.

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