Question

the mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is​

Answer 1

answerNo. of electrons in the uni positive ion = 10

Thus, no. of electrons in the neutral atom = 11

No. of protons = no. of electrons = 11

No. of neutrons = 12

As mass no. = no. of protons + no. of neutrons = 11 + 12 = 23.

Answer 2

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