Ineed answers before 7: 20! 1) the mass of the electron isa) about equal to the neutron. b) almost the same as the proton. c) very small compared to the proton. d) very large compared to the neutron.2)modern atomic theory states that the atom is a diffuse cloud surrounding a small, dense nucleus. most of the mass of the atom is contained in the a) electron b) neutron c) nucleus d) proton3)protonsneutrons: which statement is accurate for these two sub-atomic particles. a) they both have a neutral charge. b) they both have a positive charge. c) they are both located in the nucleus. d) they are both located outside the nucleus.4)which subatomic particle has the least mass? a) electron b) nucleus c) neutron d) proton5)  describe the structure of an atom. a)the nucleus is the dense center of the atom composed of protons and neutrons. surrounding the nucleus is an electron cloud composed of electrons. b)the nucleus is the dense center of the atom composed of electrons and neutrons. surrounding the nucleus is an electron cloud composed of protons. c)the electron cloud is the dense center of the atom composed of electrons. surrounding the electron cloud is a nucleus composed of protons and neutrons. d)the electron cloud is the dense center of the atom composed of protons and neutrons. surrounding the electron cloud is a nucleus composed of electrons.