Find the number of electrons,protons,and neutrons possessed by the alpha particles $\left({ }_{2}^{4} He ^{2+}\right)$ used in the gold leaf experiment.
- AElectrons: $0$,Protons: $2$,Neutrons: $2$
- BElectrons: $2$,Protons: $2$,Neutrons: $2$
- CElectrons: $0$,Protons: $2$,Neutrons: $4$
- DElectrons: $2$,Protons: $2$,Neutrons: $4$
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