MCQ
Identify the similarity between isotopes of the same element.
- AThey have the same particles in the nucleus.
- BThey are equally abundant in nature.
- CThey have the same number of protons
- ✓They have the same mass.
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$p$ $+$ ${}_3^7Li$ $\to$ $2$ ${}_2^4He$
energy of proton must be...........$MeV$

