A sample of element X has the nuclide notation y^{31}_{15}X^-. How many electrons are there in this ion?

CH-129

Proton and nucleon numbers

Chemistry · Secondary 3 · Easy · Proton and nucleon numbers

A sample of element X has the nuclide notation

y

^{31}_{15}

^-

.

How many electrons are there in this ion?

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