[填空题]
How much energy would be requir jog01( gif79mg; t.fvoz1aaked to breakn wyw5u pff,) )/aymv4 a helium nucleus into its constituents, two protons and two neutrons? The rest masses of a proton (includingpuyn)5w)fy 4 ,/fwma v an electron), a neutron, and helium are, respectively, 1.00783 u, 1.00867 u, and 4.00260 u. (This energy difference is called the total binding energy of the $^4\text{He}$ nucleus.) KE = MeV
