I need help!!! the last two answers choices are
c. Atom 2 is the same, because it just has many electrons as the number of protons in atoms 1 and 3.
D. Atom 2 is not the same, because the mass number is different from atoms 1 and 2.
![I need help the last two answers choices are c Atom 2 is the same because it just has many electrons as the number of protons in atoms 1 and 3 D Atom 2 is not t class=](https://us-static.z-dn.net/files/de9/51ce3549a4fc89c7af9308d79fbfcf05.png)