How do I find the charge of an ion and to write the ion symbol?

Science
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Element: Gold, Atomic Number: 79, Atomic Mass: 197, Charge: ?, Protons: 79, Neutrons: 118, Electrons: 79

How do I find the charge of an ion? (I remember Charge = Protons and electrons)

How do you write the ion symbol?

Thanks

Oct 24th, 2015

Thank you for the opportunity to help you with your question!

Count the number of protons and electrons. If there are more protons than electron, then the atom has a POSITIVE charge (+). If there are more electrons than protons, then the atom has a NEGATIVE charge (-).

For example. If an atom has 2 more protons than electrons, you write the symbol of the atom from the Periodic Table then write a +2 next to it.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 24th, 2015

Do I write (0) when the protons and electrons are equal?

Oct 24th, 2015

No. When they are equal then the atom is not an ion. So you don't write anything next to the letter symbol.

Oct 24th, 2015

do I write something in Charge? like +1?

Oct 24th, 2015

Yes.


Oct 25th, 2015

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