Which one of the following is an acceptable approximate wave function for a state of the helium atom?(1) [1s(1)1s(2) – 1s(1)1s(2)][ ? (1)? (2)](2) [1s(1)1s(2)][ ? (1) ? (2) + ? (1)? (2)](3) [1s(1)2s(2) + 2s(1)1s(2)][ ? (1) ? (2)](4) [1s(1)2s(2) + 2s(1)1s(2)][ ? (1)?...
