Chemistry
What are nucleons? How many nucleons are present in phosphorus? Draw its structure.
Atomic Structure
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Answer
Constituents of the nucleus are called nucleons, i.e. protons and neutrons.
3115P has atomic number 15, hence it has 15 protons.
Mass number 31, hence number of neutrons = 31 - 15 = 16
Therefore, number of nucleons are p + n = 15 + 16 = 31.
Structure of Phosphorus is shown in the diagram below:
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