Show your calculation of the total number of outer electrons

Chemistry
Tutor: None Selected Time limit: 1 Day

Jun 30th, 2015

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the answer is B

the electronic configuration of Phosphorus is 1s2 2s2 2p6 3s2 3p3

so three p orbitals are vacant.So for octet three more electrons are required.Flourine configuration is 1s2 2s2 2p5

so each flourine atom requires 1 electron for octet so three covalent bonds are formed.

and phosphorus has one lone pair in 2nd shell.

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Jun 30th, 2015

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