There are 0.0214 mol Cs in 1.29×10²² atoms Cs.
Use <em>Avogadro’s number</em> to convert atoms of Cs to moles of Cs.
Moles of Cs = 1.29×10²² atoms Cs × (1 mol Cs /6.022 × 10²³ atoms Cs) = 0.0214 mol Cs
The particles<span> that completely went through passed through the empty space in the atom. The </span>particles<span>that were </span>deflected<span> to the sides were deflated by a passing electron that moved the alpha </span>particle<span> out of the way. The </span>particles<span> that were bounced back hit the nucleus in the center that it bounced off.
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hoped that helped
I think the answer is 10g
when you freeze a specific amount of water into an ice cube, only the form and the density is changed, while the mass will be pretty much the same.
Probably the mass of the melted water will be a little bit less than the cube (if count the mass that released to the air) , but the amount will NOT BE SIGNIFICANT.