FORESTRY
PLANT AND WOOD ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nitrogen has 7 protons. What is the atomic mass of its common isotope, rounded to the nearest whole number?
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14
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10
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7
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11
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Explanation:
Detailed explanation-1: -A nitrogen atom with 7 protons and 8 neutrons has a mass number of 15 amu. On the periodic table, the atomic mass for nitrogen is 14.01.
Detailed explanation-2: -Nitrogen has an atomic number of 7 and mass number of 14, an isotope of nitrogen has a mass number of 17.
Detailed explanation-3: -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.
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