[Chemical Knowledge]：What does Anion mean?

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What does Anion mean? We need to understand the concept of ions. Ions refer to atoms or molecules that are positively or negatively charged. Depending on the type of charge, ions can be divided into cations and anions. Anion is an ion with a negative charge.

In chemistry, anion is one of the common ion types. They play an important role in chemical reactions. Why do some atoms or molecules become negatively charged? This is because they absorb or lose one or more electrons and become negatively charged substances in a chemical reaction, known as anion.

In chemical formulas, anion is usually represented by the symbol. For example, chloride ion (Cl-), nitrate ion (NO3-), carbonate ion (CO32-), etc. are examples of anion. It should be noted that although negative ions have a negative charge, they need to combine with the corresponding cation to form a compound in the chemical reaction.

anion plays a very important role in chemical reactions. They may form salts or ionic compounds with cations. For example, Na is combined with Cl-to form sodium chloride (NaCl). Similarly, ammonia (NH3) reacts with an acid to form negatively charged ions such as ammonia ions NH2 − and ammonium ions NH4.

anion is also very important in biochemistry. For example, in the human body, fatty acids are converted into negatively charged ions called phosphatidate ions. This anion is very important for the assembly and maintenance function of the cell membrane.

anions are negatively charged ions that play very important roles in both chemistry and biology. We need to recognize and understand their role and nature in order to better apply them to the fields of chemistry and biology.

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