Calcium · chemical symbol

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Calcium builds bones and teeth and stands as the most abundant metal found in the human body. Source: Calcium ↗

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24This thyroid-essential element produces a striking violet vapour when heated.RECALL
Iodine
Iodine supports thyroid function and produces a striking violet vapour; it can also melt into a liquid.
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25Iodine · chemical symbolRECALL
I
Iodine supports thyroid function and produces a striking violet vapour; it can also melt into a liquid.
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26This lightest metal is used in rechargeable batteries and in some psychiatric medicines.RECALL
Lithium
Lithium is the lightest of all metals and powers rechargeable batteries as well as certain medications.
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