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Natural nitrogen atoms has found to exis...

Natural nitrogen atoms has found to exist in two isotopic forms, `._(7)N^(14)` with mass `14.0031` and `._(7)N^(15)` with mas `15.0001` amu. Which isotope is more stable? Assume mass of `n` and `p` to eb `1.00893` and `1.00757` amu.

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