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Chemistry 10 Online
OpenStudy (anonymous):

Isotopes of an element must have different....? and Why? a. numbers of protons b. atomic numbers c. numbers of electrons d.mass numbers

OpenStudy (anonymous):

D because isotopes have different numbers of neutrons than their representative atom, and this causes the mass number (#protons + #neutrons) to change

OpenStudy (anonymous):

Thank you so much :D

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