Question

a sample of nitrogen contains 99.6% nitrogen-14 and 0.4% nitrogen-15. Calculate the relative atomic mass of the element​

Answer 1

Explanation:

Natural nitrogen (7N) consists of two stable isotopes: the vast majority (99.6%) of naturally occurring nitrogen is nitrogen-14, with the remainder being nitrogen-15. Fourteen radioisotopes are also known, with atomic masses ranging from ... Like all elements heavier than lithium, the original source of nitrogen-14

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