07-01-2018
Chemistry

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Which element would float in water?

1) Sodium

2) Magnesium

3) Cesium

4) Radium

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lydiahorton111p21sij lydiahorton111p21sij

07-01-2018

It is Sodium because Lithium is not lighter than oxygen. It is, however, about half as dense as water. So it would float on water if it were not too busy reacting with it, like (but not as violently as) the related elements sodium and potassium.

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