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1st 9 Weeks 6 Week Exam Pre-IB / Pre-AP Chemistry PLEASE DO NOT WRITE ON EXAM!! 1 Which of the following has the least mass in an atom? A neutron B proton C electron D nucleus 8 Which of the following statements describes isotopes of an atom? A different chemical properties B different numbers of protons C different masses D different numbers of electrons 2 An atom that is electrically neutral must contain A fewer neutrons than protons B equal numbers of electrons and protons C equal number of electrons and neutrons D no electrons in its outer shell 9 Any atom that is electrically neutral must contain — A more protons than electrons B equal numbers of electrons and protons C fewer neutrons than nucleons D equal numbers of nucleons and Neutrons 3 Which of the following statements is most accurate regarding atoms? A Most atoms cannot combine with other atoms. B Chemical reactions divide atoms into smaller units. C Atoms of the same element may have different mass numbers. D Atoms only contain protons. 10 How many protons and neutrons are in one atom of 1430Si? A 14 protons and 14 neutrons B 14 protons and 16 neutrons C 16 protons and 14 neutrons D 16 protons and 16 neutrons 4 The cathode ray experiments lead to which particle being discovered? A nucleus B proton C neutron D electron 5 The proton, in Rutherford’s experiments, were used to — A identify chemical properties B identify the melting point C determine molecular mass D bombard sheets of gold 6 An isotope of mercury has 80 protons and 120 neutrons. What is the mass number of this isotope? A 80 B 120 C 200 D 201 7 How many neutrons would Sulfur-34 have? A 16 B 18 C 20 D 32 Fall 2011 11 Which part of an atom has the least mass? A electron B neutron C nucleus D proton 12 Which of the following is the area outside the nucleus where electron is found? A quantum number B electron configuration C electron orbit D electron cloud 13 Which of the following showed electrons in specific, fixed orbits? A Rutherford Model B Planck Model C Bohr Model D Quantum Model 14 Which nuclear particle has the same relative mass as the proton, but has no electrical charge? A electron B neutron C isotope D quark 1 1st 9 Weeks 6 Week Exam Pre-IB / Pre-AP Chemistry PLEASE DO NOT WRITE ON EXAM!! 1 Which nuclear particle has the same relative mass as the proton, but has no electrical charge? A electron B neutron C isotope D quark 2 Which of the following has the least mass in an atom? A neutron B proton C electron D nucleus 3 Which of the following showed electrons in specific, fixed orbits? A Rutherford Model B Planck Model C Bohr Model D Quantum Model 4 An atom that is electrically neutral must contain A fewer neutrons than protons B equal numbers of electrons and protons C equal number of electrons and neutrons D no electrons in its outer shell 5 Which of the following is the area outside the nucleus where electron is found? A quantum number B electron configuration C electron orbit D electron cloud 6 Which of the following statements is most accurate regarding atoms? A Most atoms cannot combine with other atoms. B Chemical reactions divide atoms into smaller units. C Atoms of the same element may have different mass numbers. D Atoms only contain protons. 7 Which part of an atom has the least mass? A electron B neutron C nucleus D proton Fall 2011 8 The cathode ray experiments lead to which particle being discovered? A nucleus B proton C neutron D electron 9 How many protons and neutrons are in one atom of 1430Si? A 14 protons and 14 neutrons B 14 protons and 16 neutrons C 16 protons and 14 neutrons D 16 protons and 16 neutrons 10 The proton, in Rutherford’s experiments, were used to — A identify chemical properties B identify the melting point C determine molecular mass D bombard sheets of gold 11 Any atom that is electrically neutral must contain — A more protons than electrons B equal numbers of electrons and protons C fewer neutrons than nucleons D equal numbers of nucleons and Neutrons 12 An isotope of mercury has 80 protons and 120 neutrons. What is the mass number of this isotope? A 80 B 120 C 200 D 201 13 Which of the following statements describes isotopes of an atom? A different chemical properties B different numbers of protons C different masses D different numbers of electrons 14 How many neutrons would Sulfur-34 have? A 16 B 18 C 20 D 32 2 1st 9 Weeks 6 Week Exam Pre-IB / Pre-AP Chemistry PLEASE DO NOT WRITE ON EXAM!! Fall 2011 1 The cathode ray experiments lead to which particle being discovered? A nucleus B proton C neutron D electron 8 Which nuclear particle has the same relative mass as the proton, but has no electrical charge? A electron B neutron C isotope D quark 2 How many protons and neutrons are in one atom of 1430Si? A 14 protons and 14 neutrons B 14 protons and 16 neutrons C 16 protons and 14 neutrons D 16 protons and 16 neutrons 9 Which of the following has the least mass in an atom? A neutron B proton C electron D nucleus 3 The proton, in Rutherford’s experiments, were used to — A identify chemical properties B identify the melting point C determine molecular mass D bombard sheets of gold 10 Which of the following showed electrons in specific, fixed orbits? A Rutherford Model B Planck Model C Bohr Model D Quantum Model 4 Any atom that is electrically neutral must contain — A more protons than electrons B equal numbers of electrons and protons C fewer neutrons than nucleons D equal numbers of nucleons and Neutrons 11 An atom that is electrically neutral must contain A fewer neutrons than protons B equal numbers of electrons and protons C equal number of electrons and neutrons D no electrons in its outer shell 5 An isotope of mercury has 80 protons and 120 neutrons. What is the mass number of this isotope? A 80 B 120 C 200 D 201 12 Which of the following is the area outside the nucleus where electron is found? A quantum number B electron configuration C electron orbit D electron cloud 6 Which of the following statements describes isotopes of an atom? A different chemical properties B different numbers of protons C different masses D different numbers of electrons 13 Which of the following statements is most accurate regarding atoms? A Most atoms cannot combine with other atoms. B Chemical reactions divide atoms into smaller units. C Atoms of the same element may have different mass numbers. D Atoms only contain protons. 7 How many neutrons would Sulfur-34 have? A 16 B 18 C 20 D 32 14 Which part of an atom has the least mass? A electron B neutron C nucleus D proton 3 1st 9 Weeks 6 Week Exam Pre-IB / Pre-AP Chemistry PLEASE DO NOT WRITE ON EXAM!! Fall 2011 1 An isotope of mercury has 80 protons and 120 neutrons. What is the mass number of this isotope? A 80 B 120 C 200 D 201 8 Which nuclear particle has the same relative mass as the proton, but has no electrical charge? A electron B neutron C isotope D quark 2 Which of the following statements describes isotopes of an atom? A different chemical properties B different numbers of protons C different masses D different numbers of electrons 9 Which of the following has the least mass in an atom? A neutron B proton C electron D nucleus 3 How many neutrons would Sulfur-34 have? A 16 B 18 C 20 D 32 10 Which of the following showed electrons in specific, fixed orbits? A Rutherford Model B Planck Model C Bohr Model D Quantum Model 4 Which of the following is the area outside the nucleus where electron is found? A quantum number B electron configuration C electron orbit D electron cloud 11 An atom that is electrically neutral must contain A fewer neutrons than protons B equal numbers of electrons and protons C equal number of electrons and neutrons D no electrons in its outer shell 5 Which of the following statements is most accurate regarding atoms? A Most atoms cannot combine with other atoms. B Chemical reactions divide atoms into smaller units. C Atoms of the same element may have different mass numbers. D Atoms only contain protons. 6 Which part of an atom has the least mass? A electron B neutron C nucleus D proton 7 Any atom that is electrically neutral must contain — A more protons than electrons B equal numbers of electrons and protons C fewer neutrons than nucleons D equal numbers of nucleons and Neutrons 12 The cathode ray experiments lead to which particle being discovered? A nucleus B proton C neutron D electron 13 How many protons and neutrons are in one atom of 1430Si? A 14 protons and 14 neutrons B 14 protons and 16 neutrons C 16 protons and 14 neutrons D 16 protons and 16 neutrons 14 The proton, in Rutherford’s experiments, were used to — A identify chemical properties B identify the melting point C determine molecular mass D bombard sheets of gold 4
