The nuclear radius of a hydrogen atom is appr | vedclass

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(B) The nuclear radius $R$ is calculated using the formula $R = R_0 A^{1/3}$,where $R_0 \approx 1.2 	ext{ fm}$ and $A$ is the mass number of the nucl

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$1.2$

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(B) The nuclear radius $R$ is calculated using the formula $R = R_0 A^{1/3}$,where $R_0 \approx 1.2 	ext{ fm}$ and $A$ is the mass number of the nucleus.For a hydrogen atom,the nucleus consists of a single proton,so the mass number $A = 1$.Substituting the value of $A$ into the formula:$R = 1.2 	imes (1)^{1/3} 	ext{ fm}$$R = 1.2 	imes 1 	ext{ fm} = 1.2 	ext{ fm}$.Therefore,the nuclear radius of a hydrogen atom is $1.2 	ext{ fm}$.The correct option is $B$.

The nuclear radius of a hydrogen atom is approximately . . . . . . . (in $fm$)

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