V sphere %3D 3 Osmium (Os) is a transition metal which has a density of 2.257 x 104 kg/m at 20°C. A sphere of osmium has a diameter of 0.084054 dm. Calculate the number of osmium atoms in the sphere of osmium.

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A: The formula of potassium ion is K+ and the formula of chloride ion is Cl-

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A: mass percentage of water = Mas of waterMass of hydrate x 100

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A:

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A:

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.