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This element is part of group 2 and has a atomic number of 12 and a standard atomic weight of 24.3. this means that it contains 12 protons in its atomic state and has more than one isotope. Its isotopes have 12, 13 and 14 neutrons. it is commonly found in ion form of +2 after being oxidised. it is a shiny grey solid at room temperature and is considered an alkaline earth metal.

It has the electron configuration of: 1S2 2S2 2P6 3S2

Magnesium is the key element involved in photosynthesis, it is found in chlorophyll.

Mg2+ is an important ion when it is used for PCR in Biomedical sciences experiments. Mg2+ role is to interact with Taq polymerase. It act as a co factor. Mg2+ concentration during a PCR is important as too low a concentration will lead to low yield of products and too high a concentration can effect the DNA polymerase and lead to unwanted products being formed.

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