The four elements, W, X, Y and Z, are shown with the electronic configurations below. W: $2,4$ X: $2,6$ Y: $2,8,2$ Z: $2,8,8,1$ Which formulae are the ones that would have boiling points lower than room temperature?
- A1, 2 and 3 are correct
- B1 and 2 only are correct
- C2 and 3 only are correct
- D1 only is correct