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31 15 From the symbol P state: (a) Atomic number of the element (b) Atomic mass number of the element (c) Electronic configuration of the element (d) Valency of the element.
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haile75142

(a) Atomic number of phosphorus is 15. (b) Atomic mass number of a specific isotope of phosphorus would depend on which isotope is considered. (c) The electronic configuration of phosphorus is 1s² 2s² 2p⁶ 3s² 3p³. (d) The valency of phosphorus is typically

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