{"childItems":[
  
  
  {
    "itemId":"4644AH1Z",
    "itemType":"BT_quizQuestion",
    "questionText":"A molecule of ethane and a molecule of ethene both have the same",
    "correctAnswerText":"number of carbon atoms",
    "incorrectText1":"empirical formula",
    "incorrectText2":"molecular formula",
    "incorrectText3":"number of hydrogen atoms"
  },
  {
    "itemId":"QG7YH9I0",
    "itemType":"BT_quizQuestion",
    "questionText":"Which substance can not be decomposed into simpler substances?",
    "correctAnswerText":"aluminum",
    "incorrectText1":"ammonia",
    "incorrectText2":"methanol",
    "incorrectText3":"methane"
  },
  {
    "itemId":"ETQC22R8",
    "itemType":"BT_quizQuestion",
    "questionText":"The atomic number of an atom is always equal to the total number of",
    "correctAnswerText":"protons in the nucleus",
    "incorrectText1":"neutrons in the nucleus",
    "incorrectText2":"protons plus electrons in the atom",
    "incorrectText3":"neutrons plus protons in the atom"
  },
  {
    "itemId":"ZO7VQX9B",
    "itemType":"BT_quizQuestion",
    "questionText":"All of the atoms of argon have the same",
    "correctAnswerText":"atomic number",
    "incorrectText1":"mass number",
    "incorrectText2":"number of nucleons",
    "incorrectText3":"number of neutrons"
  },
  {
    "itemId":"H2FQP4Q4",
    "itemType":"BT_quizQuestion",
    "questionText":"An atom of an element contains 20 protons, 20 neutrons, and 20 electrons. This element is",
    "correctAnswerText":"an alkaline earth metal",
    "incorrectText1":"an alkali metal",
    "incorrectText2":"a noble gas",
    "incorrectText3":"a halogen"
  },
  {
    "itemId":"6WHV7UKO",
    "itemType":"BT_quizQuestion",
    "questionText":"Which is the atomic number of an atom with six valence electrons?",
    "correctAnswerText":"8",
    "incorrectText1":"6",
    "incorrectText2":"12",
    "incorrectText3":"10"
  },
  {
    "itemId":"YJ752RU1",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the atomic number of an element whose atoms each contain 47 protons, 60 neutrons, and 47 electrons?",
    "correctAnswerText":"47",
    "incorrectText1":"13",
    "incorrectText2":"107",
    "incorrectText3":"60"
  },
  {
    "itemId":"1UFI2T9K",
    "itemType":"BT_quizQuestion",
    "questionText":"The atomic number of an alkali metal is",
    "correctAnswerText":"11",
    "incorrectText1":"1",
    "incorrectText2":"20",
    "incorrectText3":"14"
  },
  {
    "itemId":"CPSOYVBN",
    "itemType":"BT_quizQuestion",
    "questionText":"In a sample of pure copper, all atoms have atomic numbers which are",
    "correctAnswerText":"the same and the atoms have the same number of electrons",
    "incorrectText1":"dierent and the atoms have a dierent number of electrons",
    "incorrectText2":"the same but the atoms have a dierent number of electrons",
    "incorrectText3":"dierent but the atoms have the same number of electrons"
  },
  {
    "itemId":"QQL6NTBW",
    "itemType":"BT_quizQuestion",
    "questionText":"The properties of elements are periodic functions of their",
    "correctAnswerText":"atomic numbers",
    "incorrectText1":"mass numbers",
    "incorrectText2":"atomic masses",
    "incorrectText3":"atomic radii"
  },
  {
    "itemId":"088C4B3D",
    "itemType":"BT_quizQuestion",
    "questionText":"Which atom has a nucleus that contains 13 protons and 14 neutrons?",
    "correctAnswerText":"Al",
    "incorrectText1":"Mg",
    "incorrectText2":"Be",
    "incorrectText3":"N"
  },
  {
    "itemId":"MMXBK29Y",
    "itemType":"BT_quizQuestion",
    "questionText":"Which of the following atoms has the greatest nuclear charge?",
    "correctAnswerText":"Ar",
    "incorrectText1":"Al",
    "incorrectText2":"Na",
    "incorrectText3":"Si"
  },
  {
    "itemId":"4T81HJLL",
    "itemType":"BT_quizQuestion",
    "questionText":"The atomic number of any atom is equal to the number of",
    "correctAnswerText":"protons in the atom, only",
    "incorrectText1":"neutrons in the atom only",
    "incorrectText2":"protons plus electrons in the atom",
    "incorrectText3":"neutrons plus protons in the atom"
  },
  {
    "itemId":"TQLJA47S",
    "itemType":"BT_quizQuestion",
    "questionText":"A particle of matter contains 6 protons, 7 neutrons, and 6 electrons. This particle must be a",
    "correctAnswerText":"neutral carbon atom",
    "incorrectText1":"positively charged nitrogen ion",
    "incorrectText2":"neutral nitrogen atom",
    "incorrectText3":"positively charged carbon ion"
  },
  {
    "itemId":"HMQEZ3UE",
    "itemType":"BT_quizQuestion",
    "questionText":"As the number of neutrons in the nucleus of a given atom of an element increases, the atomic number of that element",
    "correctAnswerText":"remains the same",
    "incorrectText1":"decreases",
    "incorrectText2":"increases",
    "incorrectText3":""
  },
  {
    "itemId":"TB0NXQBW",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the mass number of a deutrium atom?",
    "correctAnswerText":"2",
    "incorrectText1":"1",
    "incorrectText2":"4",
    "incorrectText3":"3"
  },
  {
    "itemId":"LJG0JRYN",
    "itemType":"BT_quizQuestion",
    "questionText":"Which two particles have approximately the same mass?",
    "correctAnswerText":"proton and neutron",
    "incorrectText1":"neutron and electron",
    "incorrectText2":"neutron an deutron",
    "incorrectText3":"proton and electron"
  },
  {
    "itemId":"1E0W1W3N",
    "itemType":"BT_quizQuestion",
    "questionText":"The mass number of an atom is equal to the number of",
    "correctAnswerText":"neutrons plus protons",
    "incorrectText1":"neutrons, only",
    "incorrectText2":"protons, only",
    "incorrectText3":"electrons plus protons"
  },
  {
    "itemId":"T31JZB5E",
    "itemType":"BT_quizQuestion",
    "questionText":"Which of the following particles has the least mass?",
    "correctAnswerText":"beta particle",
    "incorrectText1":"alpha particle",
    "incorrectText2":"neutron",
    "incorrectText3":"proton"
  },
  {
    "itemId":"POBSRQDQ",
    "itemType":"BT_quizQuestion",
    "questionText":"The nucleus is the part of the atom that",
    "correctAnswerText":"contains most of the atom’s total mass",
    "incorrectText1":"consist mostly of empty space",
    "incorrectText2":"has a negative charge",
    "incorrectText3":"occupies most of the atom’s total volume"
  },
  {
    "itemId":"QG4W0PZL",
    "itemType":"BT_quizQuestion",
    "questionText":"A compound contains nitrogen and oxygen in the mole ratio of 1 : 1. The molecular mass of this compound could be",
    "correctAnswerText":"30",
    "incorrectText1":"14",
    "incorrectText2":"16",
    "incorrectText3":"40"
  },
  {
    "itemId":"FFV1CEOL",
    "itemType":"BT_quizQuestion",
    "questionText":"Experimental evidence indicates that the nucleus of an atom",
    "correctAnswerText":"contains most of the mass of the atom",
    "incorrectText1":"has a negative charge",
    "incorrectText2":"contains a small percentage of the mass of the atom",
    "incorrectText3":"has no charge"
  },
  {
    "itemId":"HJRZVJUJ",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the mass number of an atom which contains 21 electrons, 21 protons, and 24 neutrons?",
    "correctAnswerText":"45",
    "incorrectText1":"21",
    "incorrectText2":"42",
    "incorrectText3":"66"
  },
  {
    "itemId":"O8XVY47X",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the mass number of an ion that has 83 protons, 80 electrons, and 126 neutrons?",
    "correctAnswerText":"209",
    "incorrectText1":"83",
    "incorrectText2":"206",
    "incorrectText3":"289"
  },
  {
    "itemId":"PSB6P9U4",
    "itemType":"BT_quizQuestion",
    "questionText":"If an atom of Ca and an atom of Ar have the same total number of nucleons, they must have the same",
    "correctAnswerText":"mass number",
    "incorrectText1":"atomic number",
    "incorrectText2":"number of neutrons",
    "incorrectText3":"number of electrons"
  },
  {
    "itemId":"DKN8PLDO",
    "itemType":"BT_quizQuestion",
    "questionText":"An atom that contains 8 protons, 8 electrons, and 9 neutrons has",
    "correctAnswerText":"a mass number of 17",
    "incorrectText1":"an atomic number of 9",
    "incorrectText2":"an atomic number of 16",
    "incorrectText3":"a mass number of 25"
  },
  {
    "itemId":"MESM02KM",
    "itemType":"BT_quizQuestion",
    "questionText":"Compared to the entire atom, the nucleus of the atom is",
    "correctAnswerText":"smaller and contains most of the atom’s mass",
    "incorrectText1":"larger and contains little of the atom’s mass",
    "incorrectText2":"smaller and contains little of the atom’s mass",
    "incorrectText3":"larger and contains most of the atom’s mass"
  },
  {
    "itemId":"FBYANKDP",
    "itemType":"BT_quizQuestion",
    "questionText":"Which quantity is represented by the symbol Ne ?",
    "correctAnswerText":"1 gram of neon",
    "incorrectText1":"1 atomic mass unit of neon",
    "incorrectText2":"1 liter of neon",
    "incorrectText3":"1 mole of neon"
  },
  {
    "itemId":"OGGJWLYI",
    "itemType":"BT_quizQuestion",
    "questionText":"The atoms in a sample of an element must contain nuclei with the same number of",
    "correctAnswerText":"protons",
    "incorrectText1":"electrons",
    "incorrectText2":"nucleons",
    "incorrectText3":"neutrons"
  },
  {
    "itemId":"67X5FYDY",
    "itemType":"BT_quizQuestion",
    "questionText":"Compared to an atom of calcium-40, an atom of potassium-39 contains fewer",
    "correctAnswerText":"protons",
    "incorrectText1":"occupied principal energy levels",
    "incorrectText2":"neutrons",
    "incorrectText3":"occupied sublevels"
  },
  {
    "itemId":"6IGO2YLG",
    "itemType":"BT_quizQuestion",
    "questionText":"An experiment using alpha particles to bombard a thin sheet of gold foil indicated that most of the volume of the atoms in the foil is taken up by",
    "correctAnswerText":"empty space",
    "incorrectText1":"electrons",
    "incorrectText2":"protons",
    "incorrectText3":"neutrons"
  },
  {
    "itemId":"ZGZ7AZAK",
    "itemType":"BT_quizQuestion",
    "questionText":"In all samples of the element potassium, each atom has",
    "correctAnswerText":"19 protons",
    "incorrectText1":"39 nucleons",
    "incorrectText2":"20 neutrons",
    "incorrectText3":"39 protons and neutrons"
  },
  {
    "itemId":"UIJ9Q0VY",
    "itemType":"BT_quizQuestion",
    "questionText":"Which particle has a mass of approximately one atomic mass unit and a unit positive charge?",
    "correctAnswerText":"a proton",
    "incorrectText1":"a neutron",
    "incorrectText2":"an alpha particle",
    "incorrectText3":"a beta particle"
  },
  {
    "itemId":"NM0DMYPY",
    "itemType":"BT_quizQuestion",
    "questionText":"In an experiment, alpha particles were used to bombard gold foil. As a result of this experiment, the conclusion was made that the nucleus of an atom is",
    "correctAnswerText":"smaller than the atom and positively charged",
    "incorrectText1":"larger than the atom and negatively charged",
    "incorrectText2":"smaller than the atom and negatively charged",
    "incorrectText3":"larger than the atom and positively charged"
  },
  {
    "itemId":"ZO2MWCQ6",
    "itemType":"BT_quizQuestion",
    "questionText":"Which kind of particle, when passed through an electric field, would be attracted to the negative electrode?",
    "correctAnswerText":"an alpha particle",
    "incorrectText1":"an electron",
    "incorrectText2":"a beta particle",
    "incorrectText3":"a neutron"
  },
  {
    "itemId":"QCUJROM3",
    "itemType":"BT_quizQuestion",
    "questionText":"The mass of a calcium atom is due primarily to the mass of its",
    "correctAnswerText":"protons and neutrons",
    "incorrectText1":"protons, only",
    "incorrectText2":"neutrons, only",
    "incorrectText3":"protons and electrons"
  },
  {
    "itemId":"2FVFZGVS",
    "itemType":"BT_quizQuestion",
    "questionText":"Which subatomic particles have a mass of approximately 1 atomic mass unit each?",
    "correctAnswerText":"proton and neutron",
    "incorrectText1":"proton and electron",
    "incorrectText2":"electron and positron",
    "incorrectText3":"neutron and positron"
  },
  {
    "itemId":"X06ZGX00",
    "itemType":"BT_quizQuestion",
    "questionText":"Experiments with gold foil indicated that atoms",
    "correctAnswerText":"contain a positively charged, dense center",
    "incorrectText1":"usually have a uniform distribution of positive charges",
    "incorrectText2":"usually have a uniform distribution of negative charges",
    "incorrectText3":"contain a negatively charged, dense center"
  },
  {
    "itemId":"UQUZ81PM",
    "itemType":"BT_quizQuestion",
    "questionText":"Which particle is electrically neutral?",
    "correctAnswerText":"neutron",
    "incorrectText1":"proton",
    "incorrectText2":"positron",
    "incorrectText3":"electron"
  },
  {
    "itemId":"QVHT76MM",
    "itemType":"BT_quizQuestion",
    "questionText":"Which particle can not be accelerated by the electric or magnetic fields in a particle accelerator?",
    "correctAnswerText":"neutron",
    "incorrectText1":"beta particle",
    "incorrectText2":"proton",
    "incorrectText3":"alpha particle"
  },
  {
    "itemId":"I6DZATC3",
    "itemType":"BT_quizQuestion",
    "questionText":"As the number of neutrons in the nucleus of an atom increases, the nuclear charge of the atom",
    "correctAnswerText":"remains the same",
    "incorrectText1":"decreases",
    "incorrectText2":"increases",
    "incorrectText3":""
  },
  {
    "itemId":"20XFQEUA",
    "itemType":"BT_quizQuestion",
    "questionText":"Which particle has the greatest chance to overcome the electrostatic forces surrounding the nucleus of an atom?",
    "correctAnswerText":"a neutron",
    "incorrectText1":"an alpha particle",
    "incorrectText2":"a beta particle",
    "incorrectText3":"a proton"
  },
  {
    "itemId":"Y9RJV5ZW",
    "itemType":"BT_quizQuestion",
    "questionText":"An atom of carbon-14 contains",
    "correctAnswerText":"6 protons, 8 neutrons, and 6 electrons",
    "incorrectText1":"8 protons, 6 neutrons, and 6 electrons",
    "incorrectText2":"6 protons, 6 neutrons, and 8 electrons",
    "incorrectText3":"6 protons, 8 neutrons, and 8 electrons"
  },
  {
    "itemId":"SKDW4XQO",
    "itemType":"BT_quizQuestion",
    "questionText":"Neutral atoms of the same element can dier in their number of",
    "correctAnswerText":"neutrons",
    "incorrectText1":"electrons",
    "incorrectText2":"positrons",
    "incorrectText3":"protons"
  },
  {
    "itemId":"1LP0QGR6",
    "itemType":"BT_quizQuestion",
    "questionText":"Which particle has approximately the same mass as a proton?",
    "correctAnswerText":"neutron",
    "incorrectText1":"alpha",
    "incorrectText2":"beta",
    "incorrectText3":"electron"
  },
  {
    "itemId":"0R6ZDTE0",
    "itemType":"BT_quizQuestion",
    "questionText":"A neutron has approximately the same mass as",
    "correctAnswerText":"a proton",
    "incorrectText1":"an alpha particle",
    "incorrectText2":"a beta particle",
    "incorrectText3":"an electron"
  },
  {
    "itemId":"WHNTFGTY",
    "itemType":"BT_quizQuestion",
    "questionText":"The maximum number of electrons that may be found in the third principal energy level is",
    "correctAnswerText":"18",
    "incorrectText1":"8",
    "incorrectText2":"2",
    "incorrectText3":"32"
  },
  {
    "itemId":"XHJTQ7EJ",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the total number of valence electrons in an atom of phosphorus in the ground state?",
    "correctAnswerText":"5",
    "incorrectText1":"7",
    "incorrectText2":"2",
    "incorrectText3":"3"
  },
  {
    "itemId":"R9XUUOOT",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the total number of electrons in an atom with an atomic number of 13 and a mass number of 27?",
    "correctAnswerText":"13",
    "incorrectText1":"40",
    "incorrectText2":"14",
    "incorrectText3":"27"
  },
  {
    "itemId":"EYXUZP9D",
    "itemType":"BT_quizQuestion",
    "questionText":"The chemical properties of an atom are related to the number of its",
    "correctAnswerText":"valence electrons",
    "incorrectText1":"stable isotopes",
    "incorrectText2":"nucleons",
    "incorrectText3":"neutrons"
  },
  {
    "itemId":"GIM544DM",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the maximum number of electrons that can occupy the second principal energy level?",
    "correctAnswerText":"8",
    "incorrectText1":"6",
    "incorrectText2":"32",
    "incorrectText3":"18"
  },
  {
    "itemId":"7IV4CV5C",
    "itemType":"BT_quizQuestion",
    "questionText":"Which atom in the ground state has three unpaired electrons in its outermost principal energy level?",
    "correctAnswerText":"N",
    "incorrectText1":"Li",
    "incorrectText2":"B",
    "incorrectText3":"Ne"
  },
  {
    "itemId":"LRAITURI",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the total number of electrons found in the valence shell of a halogen in the the ground state?",
    "correctAnswerText":"7",
    "incorrectText1":"1",
    "incorrectText2":"2",
    "incorrectText3":"8"
  },
  {
    "itemId":"WG2VU14N",
    "itemType":"BT_quizQuestion",
    "questionText":"Which principal energy level can hold a maximum of 18 electrons?",
    "correctAnswerText":"3",
    "incorrectText1":"5",
    "incorrectText2":"2",
    "incorrectText3":"4"
  },
  {
    "itemId":"CQNBA04U",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the maximum number of sublevels in the third principal energy level?",
    "correctAnswerText":"3",
    "incorrectText1":"1",
    "incorrectText2":"2",
    "incorrectText3":"4"
  },
  {
    "itemId":"D7UVL4TJ",
    "itemType":"BT_quizQuestion",
    "questionText":"In an atom, the s sublevel has",
    "correctAnswerText":"1 orbital",
    "incorrectText1":"7 orbitals",
    "incorrectText2":"5 orbitals",
    "incorrectText3":"3 orbitals"
  },
  {
    "itemId":"RVNAD0NJ",
    "itemType":"BT_quizQuestion",
    "questionText":"Elements whose two outermost sublevels may be involved in a chemical reaction are called",
    "correctAnswerText":"transition metals",
    "incorrectText1":"noble gases",
    "incorrectText2":"halogens",
    "incorrectText3":"alkali metals"
  },
  {
    "itemId":"T9QSOXRI",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the maximum number of electrons that can occupy an orbital?",
    "correctAnswerText":"2",
    "incorrectText1":"1",
    "incorrectText2":"6",
    "incorrectText3":"3"
  },
  {
    "itemId":"CGL8QQMK",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the maximum number of electrons that can occupy the third principal energy level?",
    "correctAnswerText":"18",
    "incorrectText1":"8",
    "incorrectText2":"10",
    "incorrectText3":"3"
  },
  {
    "itemId":"UV6MRHRR",
    "itemType":"BT_quizQuestion",
    "questionText":"What is the total number of valence electrons in an atom with a total of 13 protons?",
    "correctAnswerText":"3",
    "incorrectText1":"1",
    "incorrectText2":"2",
    "incorrectText3":"4"
  },
  {
    "itemId":"US9F3U9K",
    "itemType":"BT_quizQuestion",
    "questionText":"An atom of phosphorous is in the ground state. The total number of orbitals that contain only one electron is",
    "correctAnswerText":"3",
    "incorrectText1":"5",
    "incorrectText2":"2",
    "incorrectText3":"4"
  },
  {
    "itemId":"KA63ULW3",
    "itemType":"BT_quizQuestion",
    "questionText":"The total number of completely filled orbitals in an atom of nitrogen in the ground state is",
    "correctAnswerText":"2",
    "incorrectText1":"1",
    "incorrectText2":"4",
    "incorrectText3":"3"
  },
  {
    "itemId":"6B1DTBVN",
    "itemType":"BT_quizQuestion",
    "questionText":"The maximum number of electrons that a single orbital of the 3d sublevel may contain is",
    "correctAnswerText":"2",
    "incorrectText1":"5",
    "incorrectText2":"4",
    "incorrectText3":"3"
  },
  {
    "itemId":"JXFUFI1X",
    "itemType":"BT_quizQuestion",
    "questionText":"Which atom has the strongest attraction for electrons?",
    "correctAnswerText":"Br",
    "incorrectText1":"F",
    "incorrectText2":"",
    "incorrectText3":"I"
  },
  {
    "itemId":"GGMFYVPT",
    "itemType":"BT_quizQuestion",
    "questionText":"Which of the following elements has the lowest electronegativity?",
    "correctAnswerText":"carbon",
    "incorrectText1":"oxygen",
    "incorrectText2":"fluorine",
    "incorrectText3":"nitrogen"
  },
  {
    "itemId":"313LWNPO",
    "itemType":"BT_quizQuestion",
    "questionText":"Which of the following atoms has the greatest tendency to gain electrons?",
    "correctAnswerText":"F",
    "incorrectText1":"Al",
    "incorrectText2":"Rb",
    "incorrectText3":"I"
  }
]
                    }