Atomic Number/Mass
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| The characteristics of each element depend on the nature of its [...]. | The characteristics of each element depend on the nature of its atoms.
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| an atom has a nucleus that contains [...] and neutrons, and that is surrounded by electrons. | an atom has a nucleus that contains protons and neutrons, and that is surrounded by electrons.
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| the part of the atom that most distinguishes one element from another is the number of [...] in the atoms | the part of the atom that most distinguishes one element from another is the number of protons in the atoms
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| The number of [...] in an atom is that atom's atomic number. | The number of protons in an atom is that atom's atomic number.
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| The number of [...] plus the number of protons in an atom is that atom's mass number. | The number of neutrons plus the number of protons in an atom is that atom's mass number.
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| The atomic number and mass number of an atom tell about the organization of its [...]. | The atomic number and mass number of an atom tell about the organization of its nucleus.
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| The [...] number minus the atomic number gives you the number of neutrons. | The mass number minus the atomic number gives you the number of neutrons.
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| The periodic table gives you the atomic number of each element and its *[...]* atomic mass; the average mass number of its different isotopes. | The periodic table gives you the atomic number of each element and its *average* atomic mass; the average mass number of its different isotopes.
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| Isotopes are versions of an element that have the same [...] number but different [...] numbers. | Isotopes are versions of an element that have the same atomic number but different mass numbers.
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| Isotopes of an element have the same number of [...], but a different numbers of neutrons. | Isotopes of an element have the same number of protons, but a different numbers of neutrons.
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| You can always find out an atom's atomic number by using the [...]. | You can always find out an atom's atomic number by using the periodic table.
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| In the periodic table, the atomic number is never a [...] number, but the average atomic mass usually is. | In the periodic table, the atomic number is never a decimal number, but the average atomic mass usually is.
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| Protons have a [...] charge ([...]), neutrons are neutral in charge (0), and electrons have a negative charge (-1). | Protons have a positive charge (+1), neutrons are neutral in charge (0), and electrons have a negative charge (-1).
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| The electrical balance of an atom is determined only by the numbers of protons and [...]. | The electrical balance of an atom is determined only by the numbers of protons and electrons.
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| An electrically neutral atom has an equal number of [...] and electrons, so the positive and negative charges cancel out. | An electrically neutral atom has an equal number of protons and electrons, so the positive and negative charges cancel out.
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| The net charge of a [...] atom is 0. | The net charge of a neutral atom is 0.
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| If given the number of proton it's also possible to determine the number of [...] in any electrically neutral atom. | If given the number of proton it's also possible to determine the number of electrons in any electrically neutral atom.
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| an atom has a nucleus that contains protons and [...], and that is surrounded by electrons. | an atom has a nucleus that contains protons and neutrons, and that is surrounded by electrons.
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| an atom has a nucleus that contains protons and neutrons, and that is surrounded by [...]. | an atom has a nucleus that contains protons and neutrons, and that is surrounded by electrons.
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| The number of protons in an atom is that atom's atomic [...] | The number of protons in an atom is that atom's atomic number.
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| The number of neutrons plus the number of [...] in an atom is that atom's mass number. | The number of neutrons plus the number of protons in an atom is that atom's mass number.
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| The number of neutrons plus the number of protons in an atom is that atom's [...]. | The number of neutrons plus the number of protons in an atom is that atom's mass number.
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| The mass number minus the [...] number gives you the number of neutrons. | The mass number minus the atomic number gives you the number of neutrons.
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| The mass number minus the atomic number gives you the number of [...]. | The mass number minus the atomic number gives you the number of neutrons.
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| Isotopes of an element have the same number of protons, but a different numbers of [...]. | Isotopes of an element have the same number of protons, but a different numbers of neutrons.
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| Protons have a positive charge (+1), [...] are neutral in charge ([...]), and electrons have a negative charge (-1). | Protons have a positive charge (+1), neutrons are neutral in charge (0), and electrons have a negative charge (-1).
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| Protons have a positive charge (+1), neutrons are neutral in charge (0), and [...] have a negative charge ([...]). | Protons have a positive charge (+1), neutrons are neutral in charge (0), and electrons have a negative charge (-1).
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| The electrical balance of an atom is determined only by the numbers of [...] and electrons. | The electrical balance of an atom is determined only by the numbers of protons and electrons.
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| An electrically neutral atom has an equal number of protons and [...], so the positive and negative charges cancel out. | An electrically neutral atom has an equal number of protons and electrons, so the positive and negative charges cancel out.
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| An electrically neutral atom has an equal number of protons and electrons, so the positive and negative charges [...]. | An electrically neutral atom has an equal number of protons and electrons, so the positive and negative charges cancel out.
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| The net charge of a neutral atom is [...]. | The net charge of a neutral atom is 0.
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| If given the number of proton it's also possible to determine the number of electrons in any electrically [...] atom. | If given the number of proton it's also possible to determine the number of electrons in any electrically neutral atom.
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Created by:
mr.shapard
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