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The raidus of gold nucleus (Z=79) is abo...

The raidus of gold nucleus (Z=79) is about `7xx10^(-15)m`. Assume that the positive charge is distributed uniformly throughout the nuclear volume. Find the volume charge density.

Text Solution

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The total positie charge in the nucleus is,
`q+ze=79xx1.6xx10^(-19)C`
Volume charge density `sigma=(q)/((4)/(3)xx pi R^(3))`
`s=(q)/((4)/(3)x3.14xx(7.5xx10^(-15))^(3))`
`=0.088xx10^(26)`
`=8.8xx10^(24)Cm^(-3)`
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