Where does the energy that is released come from in a nuclear reaction in fission?

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?