sentences: a electron has a uncertain 0 steam free & a neutron has a neutral 0 electric charge ->  protons and neutrons together will be positive in electric charge  producers and appliances together will be uncertain in steam free & the nucleus of an atom is made of protons and neutrons -> the nucleus of an atom is positve in electric charge the nucleus of an atom is positve in electric charge  the nucleus of an atom is positve in electric charge & the circle is the side of an eve -> the positive charge is concentrated in the center of an atom