If we look at the cation meaning, it is an ionic species which possesses a positive charge. This is also the main difference between cation and anion because anion has a negative charge. The word “cation” is a Greek word which means “Going Down”. This term was developed by scientist Faraday and Whewell. The sign of the cation is “+”, which is placed after the symbol. For example, a potassium atom loses one electron and thus has a 1+ charge. This positive charge is due to the loss of electrons by an atom, as it gains the positive charge when there is more proton in the nucleus than electrons. There are many cations that we use in our daily lives as well. And some of them are very essential for our health, like sodium, iron, magnesium potassium. Which plays an important role in maintaining good health.