Finding radius of nucleus from semi-empirical mass formula?

[Collisionman]

Homework Statement

The nuclei [itex]^{41}_{21}Sc[/itex] and [itex]^{41}_{20}Ca[/itex] are said to be a pair of mirror nuclei. If the binding energy of [itex]^{41}_{21}Sc[/itex] and [itex]^{41}_{20}Ca[/itex] is [itex]343.143 MeV[/itex] and [itex]350.420 MeV[/itex], respectively, estimate the radii of the two nuclei with the aid of the Semi-Empirical Mass Formula.

Homework Equations

1. Semi-Empirical Mass Formula: [itex]M_{Z,A} = Zm_{p} + Zm_{e}[/itex][itex] + \left(A-Z\right)m_{n} -a_{volume}A + a_{surface}A^{\frac{2}{3}}[/itex][itex] + a_{coulomb}\frac{Z\left(Z-1\right)}{A^{\frac{1}{3}}}[/itex][itex] + a_{asymmetry}\frac{\left(A-2Z\right)^{2}}{A} + \delta[/itex]
2. Binding Energy: [itex]E_{b} = a_{volume}A - a_{surface}A^{\frac{2}{3}}[/itex][itex] - a_{coulomb}\frac{Z\left(Z-1\right)}{A^{\frac{1}{3}}}[/itex][itex] - a_{asymmetry}\frac{\left(A-2Z\right)^{2}}{A} - \delta[/itex]
3. Radius of a nucleus: [itex]R=R_{0}A^{\frac{1}{3}}[/itex]

The Attempt at a Solution

I don't know exactly where to start with this question. I'm not quite sure how to relate the nuclear radius to the SEMF.

Anyway hints/help would be greatly appreciated.

Thanks!

 

[Collisionman]

I'm bumping this question up.

Any help greatly appreciated.

Thanks.