How do I figure out the ion symbol, like if it's positive or negative?
Understand the Problem
The question is asking how to determine the ion symbol of an element, specifically whether the ion is positively charged (cation) or negatively charged (anion). This typically involves understanding the electron configuration of the element and its common oxidation states.
Answer
Ion symbols have a superscript: '+' for cations and '-' for anions.
The symbol for an ion includes the element symbol followed by a superscript indicating the charge: a '+' for positive ions (cations) and a '-' for negative ions (anions). Metals usually form positive ions, and non-metals form negative ions.
Answer for screen readers
The symbol for an ion includes the element symbol followed by a superscript indicating the charge: a '+' for positive ions (cations) and a '-' for negative ions (anions). Metals usually form positive ions, and non-metals form negative ions.
More Information
Ion charge is determined by the balance between protons and electrons. Positive ions, or cations, have more protons than electrons, whereas negative ions, or anions, have more electrons.
Tips
Mixing up which elements tend to form cations versus anions is a typical error. Metals usually form cations, while non-metals form anions.
Sources
- How to Find the Symbol of an Ion - thoughtco.com
- How do you know if an ion is positive or negative? - Quora - quora.com
- Ion - Chemistry LibreTexts - chem.libretexts.org
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