The atomic number of phosphorus is 15. Its electronic configuration will be , and its valency will be.

2,8,4; 4

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2,8,5; 1

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2,8,5; 3

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2,8,2; 2

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Solution

The correct option is C 2,8,5; 3
.

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The atomic number of phosphorus is 15. Its electronic configuration will be ____, and its valency will be____.

The correct option is C 2,8,5; 3.

The atomic number of phosphorus is 15. Its electronic configuration will be , and its valency will be.

The correct option is C 2,8,5; 3
.