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chem: remove useless bond count equation

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eggy 2020-10-16 20:28:59 -04:00
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@ -294,16 +294,7 @@ Whether a covalent bond is **pure** or **polar** indicates how evenly the shared
### Bonding capacity ### Bonding capacity
The **bonding capacity** of a non-metal describes the number of covalent bonds it can form. This can be calculated via: The **bonding capacity** of a non-metal describes the number of covalent bonds it can form.
1. Finding the number of needed electrons by taking the sum of 8 times the number of atoms. Hydrogen should be multiplied by 2 instead.
2. Finding the number of electrons present by taking the sum of the valence electrons present. Any ions should have electrons added equal to their positive charge as well.
The number of covalent bonds required is then:
$$\frac{\text{needed} - \text{have}}{2}$$
The number of lone pairs (pairs of un-bonded electrons) left over is:
$$\frac{\text{have} - 2 × \text{bonds required}}{2}$$
### Dative covalent bonds ### Dative covalent bonds