Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?
Superscript 2 subscript 1 upper H plus superscript 3 subscript 1 upper H right arrow superscript 4 subscript 2 upper H e plus superscript 1 subscript 0 n.
Superscript 16 subscript 8 upper O plus superscript 4 subscript 2 upper H e right arrow superscript 20 subscript 10 upper N e.
Superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n right arrow superscript 131 subscript 53 upper I plus superscript 89 subscript 39 upper Y plus 16 superscript 1 subscript 0 n.
Superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n right arrow superscript 95 subscript 42 upper M o plus superscript 139 subscript 57 upper L a plus 2 superscript 1 subscript 0 n plus 7 superscript 0 subscript negative 1 e.