The gravitational force is the weakest of the four fundamental forces. does that mean that the gravitational force does not have an important role in the universe? explain your answer.

No, gravity does have an important role in the universe. Gravity is what keeps the things on the plants, dwarf plant, comet, ect, in it. Without gravity, the water on Earth will just float around in space. Also, gravity is what is keeping the satellite (such as our moon) attach to the planets and dwarf planet.
Not sure if this helps

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.