What is found at the centre of the atom?, A. Electron shell, B. Nucleus, C. Proton cloud, D. Isotope, Which particle has a positive charge?, A. Electron, B. Neutron, C. Proton, D. Isotope, Which particle has no charge?, A. Electron, B. Proton, C. Nucleus, D. Neutron, Which particle has a negative charge?, A. Electron, B. Neutron, C. Proton, D. Nucleus, Where are protons found?, A. Electron shells, B. Cytoplasm, C. Nucleus, D. Membrane, Where are electrons found?, A. Nucleus, B. Electron shells, C. Cytoplasm, D. Heart, Which particle has almost no mass?, A. Proton, B. Neutron, C. Electron, D. Nucleus, What is the atomic number?, A. Number of neutrons, B. Number of protons, C. Number of electrons and neutrons, D. Total particles, What is the mass number?, A. Protons + neutrons, B. Electrons + neutrons, C. Protons only, D. Electrons only, In a neutral atom, the number of protons equals the number of:, A. Neutrons, B. Shells, C. Electrons, D. Isotopes, How many electrons can the first shell hold?, A. 8, B. 4, C. 6, D. 2, How many electrons can the second shell hold?, A. 2, B. 8, C. 6, D. 12, What are isotopes?, A. Atoms with different protons, B. Atoms with different electrons only, C. Atoms of the same element with different neutrons, D. Charged atoms, Which statement about neutrons is correct?, A. They are negative, B. They are found in shells, C. They have no charge, D. They have almost no mass, Which two particles are found in the nucleus?, A. Electrons and protons, B. Protons and neutrons, C. Electrons and neutrons, D. Electrons and isotopes, Which statement about electrons is correct?, A. They are positive, B. They are in the nucleus, C. They move around the nucleus, D. They have a mass of 1, What is the charge of a proton?, A. Negative, B. Neutral, C. Positive, D. No mass, What is the charge of an electron?, A. Positive, B. Neutral, C. Negative, D. Heavy, Which statement is TRUE?, A. Electrons are in the nucleus, B. Protons have no charge, C. Neutrons are negative, D. Electrons move around the nucleus, Which statement about isotopes is TRUE?, A. Same neutrons, different protons, B. Same protons, different neutrons, C. Same electrons, different atoms, D. Different protons and neutrons, An atom has atomic number 6 and mass number 12. How many neutrons does it have?, A. 18, B. 12, C. 6, D. 24, An atom has atomic number 11 and mass number 23. How many neutrons does it have?, A. 11, B. 23, C. 12, D. 34, An atom has 8 protons. What is its atomic number?, A. 16, B. 8, C. 4, D. 12, An atom has 15 protons and 16 neutrons. What is its mass number?, A. 1, B. 15, C. 16, D. 31, A neutral atom has 7 protons. How many electrons does it have?, A. 14, B. 7, C. 0, D. 1, An atom has mass number 40 and atomic number 20. How many neutrons does it have?, A. 60, B. 40, C. 20, D. 10, An atom contains 17 protons. What is the atomic number?, A. 34, B. 17, C. 16, D. 8, An atom has 19 protons and 20 neutrons. What is its mass number?, A. 1, B. 20, C. 19, D. 39, An atom has atomic number 9 and mass number 19. How many neutrons does it contain?, A. 10, B. 19, C. 9, D. 28, A neutral atom has 13 electrons. How many protons does it have?, A. 26, B. 0, C. 13, D. 6, An atom has atomic number 14 and mass number 28. How many neutrons does it have?, A. 42, B. 14, C. 28, D. 7, A neutral atom has 9 protons. How many electrons does it have?, A. 18, B. 0, C. 9, D. 1, An atom has 20 protons and 20 neutrons. What is its mass number?, A. 20, B. 0, C. 10, D. 40.

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