create an atomic model using black for proton, gray for neutron, and white for electron
create an atomic model using black for proton, gray for neutron, and white for electron
create an atomic model using black for proton, gray for neutron, and white for electron
a 3d model of an atom with an arrow pointing to it
a diagram of the structure of an atom
a 3d rendering of an atom on a gray background
a 3d model of a molecule on a gray background