Anion (Medical Definition) | Quick Explainer Video

What is an Anion? This video covers the medical definition and provides a brief overview of this topic.
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➡️ Ion Definition
If an atom has an unbalanced number of electrons, it becomes charged and is known as an ion. Ions can have either a positive or negative charge. An ion that has more protons than electrons has a positive charge and is known as a cation.

➡️ Anion Definition
An anion has more electrons than protons which makes it negatively charged, and this is the ion that we're focusing on in this video. In order for an anion to form, one or more electrons must be gained. And for this to happen, it typically means that they have been pulled away from other atoms with a weaker affinity. The number of electrons gained indicates the charge of the ion and is shown after the chemical symbol.

➡️ For example:
If oxygen were to gain two electrons, then it would be shown as O2-. It's actually possible to predict whether an atom will form an anion or cation by looking at its position on the periodic table.

➡️ For example:
Halogens always form anions whereas alkali and alkaline earth metals always form cations. Most nonmetals such as carbon, oxygen, and sulfur form anions. Most metals such as silver, iron, and nickel typically form cations. Some elements are able to form both anions and cations under certain conditions. An example of this is hydrogen which can gain an electron to become (H-) or lose an electron to become (H+). The elements that are located in group 18 of the periodic table are known as noble gases. They typically do not form ions because their arrangement of electrons makes them unreactive.

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🚑MEDICAL DISCLAIMER
This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time.

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⏰TIMESTAMPS
0:00 - Intro
0:29 - Ion Definition
0:42 - Anion Definition
1:12 - O2 Example
1:31 - Halogen Example

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#Anion #Cation #Ion