September 28, 2020, 05:46:52 PM
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Topic: Lone pairs of electrons  (Read 111 times)

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Offline proteekrosul

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Lone pairs of electrons
« on: September 14, 2020, 05:32:26 AM »
In Phosphorus trichloride (PCl3), the central phosphorus atom has 3 bond pairs of electrons and 1 non-bonding pair of electrons. The 3 Chlorine atoms have 3 non-bonding pairs of electrons each. So does that mean the compound PCl3 has 1+3*3 = 10 lone pairs of electrons in total, or do we just count the lone pairs of the central atom (Phosphorus in this case)?

Offline chenbeier

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Re: Lone pairs of electrons
« Reply #1 on: September 14, 2020, 05:39:30 AM »
You count die lone pair of the atom you looking for. P has 1, each  chlorine has 3. To react with more chlorine or oxygen die lone pair of phosphorous is important.

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