Question #0137b

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Question #0137b

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Answer 1 · 2017-05-09T13:05:35

Atomic number 15 $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$ $1s^2 2s^2 2p^6 3s^2 3p^3$

Explanation:

Phosphorus number 15 is a very unstable element. It has five valance electrons. 10 electrons are in the filled second shell leaving five valance electrons. the $3 s^{2} 3 p^{3}$ $3s^2 3p^3$

Phosphorus can lose electrons giving a charge of +3 and +5.
Phosphorus can also gain electrons achieving a charge of -3

So the electron configuration is

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$ $1s^2 2s^2 2p^6 3s^2 3p^3$

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Question #0137b

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