Minecraft wiki entry for Element_Constructor, associated text: Using the element constructor opens up an interface with a large display and three adjustable sliders for protons, neutrons and electrons, as well as optional text inputs for each. By moving the sliders or typing in numbers into the text inputs, the large display shows the selected numbers of particles. There is a microscope icon at the left of the interface, and the inventory is shown at the bottom right of the user interface.