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Chemical bonding

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neet exam chemistry qn 79

pick out incorrect statement 1. energy of 2s orbital of hydrogen atom is greater than that of 2s orbital of he 2.electron in the outer shell will not experience the full positive charge of the nucleus 3.higher the value of (n+l) lower is the energy 4.orbitals of same energy are completely filled only after they are half filled I know option 3 is incorrect but what about option 1? I mean greater the z value greater is the energy of the same same orbital between two different atoms as E directly proportional to Z^2 so going by that he has more energy in 2s orbital than hydrogen. Am I correct or am I wrong?