Which of the following does the nucleus contain?, protons and electrons, protons and neutrons, neutrons and electrons, Which of the following statements is correct?, Protons have a positive charge and neutrons are negative, Protons have a negative charge and electrons are positive, Protons have a positive charge and electrons are negative, In an atom:, number of protons = number of electrons, number of protons = number of neutrons, number of neutrons = number of electrons, A neutron has what charge?, no charge, positive, negative, What is the mass of an electron?, 1, -1, very small (1/1836 of a proton), What is the charge on an electron?, +1, -1, 0, What is the mass of a neutron?, 1, -1, 0, What is the charge on a proton?, +1, -1, 0, What is the mass of the nucleus?, 3 AMU, 6 AMU, 9 AMU, What is the mass number of the atom?, the number of protons , the number of protons and neutrons, the number of protons, neutrons and electrons.

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