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OpenStudy (jmansedg):
One isotope of nitrogen has 7 protons and 8 neutrons. Which is the correct reference for this isotope? A. nitrogen-1 B. nitrogen-15 C. nitrogen-8 D. nitrogen-7
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OpenStudy (cuanchi):
B. nitrogen-15 you have to said what is the mass of the isotope. The mass is equal to the sum of protons+ neutrons. 7+8 other example carbon-14, carbon-12 14 and 12 are the mass of these two different isotopes of carbon
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