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Biology 17 Online
OpenStudy (anonymous):

The element nitrogen has the atomic number 7 and an atomic mass of 14. How many neutrons does an atom of nitrogen contain?

OpenStudy (ookawaiioo):

neutrons + protons = mass X + 7= 14(mass) X= neutrons

OpenStudy (rina.r):

Atomic mass = number of protons + number of neutrons. Nitrogen's atomic number is 7, thus it has 7 protons. It's atomic mass is 14 14 - 7 = 7 neutrons http://answers.yahoo.com/question/index?qid=20080501132644AAdWy81

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