Asked by dillon

An isotope, X, of a particular element has an atomic number of 15 and a mass number of 31.

Which of the following statements are true?

I. X is an isotope of phosphorus.

II. X has 16 neutrons per atom.

III. X has an atomic mass of 30.973

Answers

Answered by Ms. Sue
dillon/Tammi/Patti/Mady/Tyler/Kaitie/Lacey -- please use the same name for your posts.

Also -- You apparently didn't read this:

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