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2 years ago

If an atom has 15 protons and a mass of 31 how many neutrons will it have

Chemistry

2 answers:

Kitty [74]2 years ago

6 0

Answer:

Explanation:

To find the neutrons, it's always mass-atomic number. Since the atomic number for an atom is always the protons, it's really mass-protons.

31-15=16

creativ13 [48]2 years ago

3 0

Answer:

16 neutrons

Explanation:

now that protons are equal to electrons, there are 15 electrons. The mass is equal to 31.0, which is the ≡ of protons and ≡ neutrons added together. To find the number of neutrons, subtract the atomic # from the total mass #. 31-15=16 this would be equal to 16 now that the atomic has 31 and the mass is 15 subtract them ... you would get 16 neutrons inside the nucleus.

hope this helped ((((: if it did then please mark brainliest and have a wonderful day d:

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