Magnesium is a vital component in a chlorophyll molecule. if there isn't enough magnesium available to the plant it will synthesis ineffective pigment and so it won't be able to photosynthesis to meet it's energy demands.
Magnesium and iron
Magnesium is part of the chlorophyll in all green plants and essential for photosynthesis.Magnesium is found in algal pigments (known as chlorophyll) and is used in the metabolism of plants, algae, fungi, and bacteria.Magnesium is found in many enzymes in both plantsand animals. An enzyme is a catalyst in a living organism. It speeds up the rate at which certain changesWithout magnesium it would die because it would not be able to photosynthesise. So it would not have any food which is glucose as energy for growth and repair. The magnesium is needed so that the chlorophyll in the chloroplasts can capture the sun's light energy and use it for photosynthesis.(Cheers)
Chlorophyll, the pigment that gives plants their green color, contains magnesium at its center. Magnesium plays a crucial role in photosynthesis by helping to convert sunlight into energy that the plant can use. It is essential for plant growth and development.
Calcium helps builds strong plant cell walls. Iron and magnesium are also needed by plants. Plants that don't have enough iron get yellow leaves.
nitrogen, magnesium, iron...
Magnesium is needed by plants to make the green pigment chlorophyll and to activate some enzymes. Although there may appear to be a lot of chlorophyll in plants, each chlorophyll molecule only contains one magnesium atom. The molecular weight of chlorophyll (in fact, chlorophyll a) is 893.5. The atomic weight of magnesium is 24.3. So magnesium only makes up about 2.7% of the weight of the chlorophyll. Enzymes are catalysts and are only needed in small amounts to catalyse reactions, as they are used over and over again, so only small amounts of magnesium are needed. http://www.efma.org/introduction/section01.asp
Nitrogen is an important mineral salt needed to make proteins in plants. Nitrogen is a key component of amino acids, the building blocks of proteins, and is essential for plant growth and development. It is typically absorbed by plants from the soil in the form of nitrates or ammonium.
Plants that thrive in chalky conditions include beautiful native wildflowers such as poppies, cornflowers and chamomile, with many of these plants performing better in poor, chalky soil than rich garden beds. Likewise, plants from the chalky American prairies, such as Echinacea, lisianthus and rudbeckia, prefer thin, lime-rich conditions.
Vitamin C (L-Ascorbic acid) is not needed for plants. Plant food has nitrogen, potassium and phosphorus. Plants also like calcium and magnesium.
Magnesium nitrate is a good source of magnesium and nitrogen for plants. It contains magnesium and nitrate ions which are readily available for plant uptake. Magnesium sulfate, on the other hand, provides magnesium and sulfur to plants. It contains magnesium and sulfate ions which can also be easily absorbed by plants. Both are beneficial for plant growth, but they differ in terms of the nutrients they provide.
Two magnesium atoms would be needed to react with one bromine molecule. Magnesium has a +2 oxidation state, while bromine has a -1 oxidation state. This means that two magnesium atoms are needed to balance the charges when reacting with one bromine molecule.
As magnesium is only a trace element adding it to house plants will not significantly improve their health or vigor