In the PhET leveled assignments 3 different levels for each PhET will be provided. The intent is to make differentiation of the PhET simulations more accessible.In the “Build an Atom” PhET, we will exploreUse the number of protons, neutrons, and electrons to draw a model of the atom, identify the element, and determine the mass and charge.Predict how addition or subtraction of a proton, neutron, or electron will change the element, the charge, and the mass.Use the element name, mass, and charge