sentences: the model of an eve is usually made of both contact and 1 & the melting is the peripheral of an eve ->  the core of an atom is made of protons and neutrons  table skills the farmer of an eve & the melting is the peripheral of an eve ->  electrons surround the core of an atom  the core of an atom is made of protons and neutrons & electrons surround the core of an atom -> an atom is made of a core of protons and neutrons surrounded by electrons