How do you calculate formal charge of an ion?

Answer 1

Well hopefully you do it correctly.

See here, and here, and here,for specific examples of how to calculate a formal charge.

Most of the time when we write a chemical formula, we write it in such a way that the constituent atoms are neutral. This is not always the case, but most of the time we are understood. We could write common salt as #Na^+Cl^-# but more commonly it appears as #NaCl#. More complicated and relevant examples appear in the links and elsewhere.

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Answer 2

Axel Alvarado

Formal charge of an ion is calculated using the formula:

[ \text{Formal Charge} = \text{Valence Electrons} - \left(\frac{\text{Bonds}}{2} + \text{Unshared Electrons}\right) ]

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.