Differenciate between metals and non metals? koi thanks deedo plz rate is low(¬_¬)
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okay by the way Abhinav here ❤
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The chemical element Calcium (Ca), atomic number 20, is the fifth element and the third most abundant metal in the earth's crust. The metal is trimorphic, harder than sodium, but softer than aluminium. A well as beryllium and aluminium, and unlike the alkaline metals, it doesn't cause skin-burns.
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