The radius of the oxygen nucleus .(8)^(1...

The radius of the oxygen nucleus `._(8)^(16)O` is `2.8xx10^(-15)m`. Find the radius of lead nucleus `._(82)^(205)Pb`.

Text Solution

Verified by Experts

`R_(0)=2.8xx10^(-15)m , A_(0)=16`
`A_(Pb)=205 , R_(Pb) = ?`
`(R_(Pb))/(R_(0))=[(A_(Pb))/(A_(0))]^(1//3)=[(205)/(16)]^(1//3)`
`[because R=R_(0)A^(1//3)]`
`(R_(Pb))/(2.8xx10^(-15))=(12.82)^(1//3)=2.34`
`R_(Pb)=(2.34)xx2.8xx10^(_15)`
`= 6.55xx10^(-15)m`

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The radius of the oxygen nucleus (._8^16O) is 2.8xx10^(-15) m. Find the radius of the lead nucleus (._82^205Pb) .

`8.55xx10^(-15)` m

`6.55xx10^(-15)` m

`6.55xx10^(-13)` m

`4.55xx10^(-12)` m

The radius of the oxygen nucleus (""_(8)^(16)O) is 2.8xx10^(-15)m . Find the radius of the lead nucleus ( ""_(82)^(205)Pb) .

`8.55 xx10^(-15)m`

`6.55 xx10^(-15)m`

`6.55 xx10^(-13)m`

`4.55 xx10^(-12)m`

If the radius of a nucleus with mass number 125 is 1.5 fermi then radius of nucleus with mass number 64 is

0.48 fermi

0.96 fermi

1.92 fermi

1.2 fermi