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Anion vs Cation   Commonly, anions and cations are called ions. The atoms of various elements are not stable (except the noble gases) under normal conditions. To become stable, they undergo various chemical changes especially regarding the number of electrons. For example, they can remove or gain electrons... 

Nitrogen vs Nitrate Nitrates are highly available anionic forms containing nitrogen. Naturally, nitrogen exists as a gas, and it is the main reservoir of nitrogen. This nitrogen cannot be directly utilized by the plants, so it is converted into water soluble forms like nitrates, nitrites or ammonium. Atmospheric... 

Phosphorus vs Phosphate The phosphorus cycle is a biogeochemical cycle, which describes how different forms of phosphorus circulate within the earth. It is mainly restricted to the lithosphere, because phosphorus doesn’t have a gaseous phase. Phosphorus is largely found as phosphates, stored in soil, fossils,...