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This particle is found in the nucleus and adds mass to the nucleus. Changing its number also changes what the element is. This particle is the...

a. Neutron
b. Proton
c. Photon
d. Electron

User Annalee
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2 Answers

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The proton is the particle is found in the nucleus and adds mass to the nucleus. Changing its number also changes what the element is.
User Benvorth
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the answer is proton
User Amongalen
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