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13 votes
Which property of the isotopes must be different?

the atomic number
the electric charge
the element name
the mass number

User SuperStew
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2 Answers

10 votes

Answer:

D

Step-by-step explanation:

User Shafikshaon
by
7.8k points
7 votes

Answer:

the mass number, trust me

User Bkhanal
by
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