text: It’s not sulfur, but a solid, dark red allotrope of this element is made by pressurizing it into the epsilon phase, which yields an eight-atom molecular lattice.
full_question: It’s not sulfur, but a solid, dark red allotrope of this element is made by pressurizing it into the epsilon phase, which yields an eight-atom molecular lattice. In another allotropic form, two of atoms of this element can temporarily exist in a singlet form where all electrons are spin paired. In yet another allotropic form, three elements of this atom can combine to form a potent greenhouse gas with a pungent odor. The Space Shuttle main engine combined liquid hydrogen with a liquid form of this element. For 10 points what gaseous element, with atomic number 8, is a byproduct of photosynthesis?
first_sentence: It’s not sulfur, but a solid, dark red allotrope of this element is made by pressurizing it into the epsilon phase, which yields an eight-atom molecular lattice.