Will mark brainliest if you answer ALL of them correct.
30 POINTS

A

Explanation:

1. a

2. c

3. b

4. a

thwse should be the answeres.

let me know if this helps.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

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explanation:

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