From the symbol³¹P₁₅, state:
(i) mass number of phosphorous,
(ii) atomic number of phosphorous, and
(iii) electron configuration of phosphorus.

Academic Chemistry NCERT Class 9

The symbol 3115P,

(i) Mass no. = 31

(ii) Atomic no. = 15

(iii) Electronic configuration: (2, 8, 5)

K L M

2 8 5

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Updated on: 10-Oct-2022

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