Question

 State what are ions. Write the formulae of two divalent cations and anions each.​

Answer 1

Ions are of 2 types-cations & anions. Cations are formed when neutral atom loses one or more electrons.It has less electrons than neutral atom & so is positively charged. Eg. Sodium atom(Na) on losing an electron forms sodium cation,denoted by Na+,calcium atom on losing 2 electrons forms calcium ion,denoted by Ca2+...

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Answer 2

Answer:

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Explanation:

Ion, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions.

cation -Mg^2+

anion O^2-