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Atomic Structure TEK 8.5A

Quiz by Tomekka Williams

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12 questions
Show answers
  • Q1
    Made up of protons and neutrons; Center of an atom
    Nucleus
    30s
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  • Q2
    positively charged subatomic particle; located in the nucleus; mass of 1 a.m.u
    Proton
    30s
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  • Q3
    negatively charged subatomic particle; located in the electron cloud; mass of basically nothing
    Electron
    30s
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  • Q4
    neutrally charged subatomic particle; located in the nucleus; mass of 1 a.m.u.
    Neutron
    30s
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  • Q5
    The sum of protons and neutrons in an atom's nucleus
    Mass Number
    30s
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  • Q6
    protons, neutrons, and electrons
    Subatomic Particles
    30s
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  • Q7
    What type of particles are found in the cloud surrounding the atom's nucleus?
    Question Image
    Negatively charged particles only
    Positively and negatively charged particles
    Neutral particles only
    Neutrally and negatively charged particles
    30s
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  • Q8
    What is the mass number of potassium (K) that has 20 neutrons?
    19
    20
    39
    18
    30s
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  • Q9
    An atoms has 25 protons, 30 neutrons and 25 electrons, What is the charge of the atoms nucleus?
    -30
    -25
    +30
    +25
    30s
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  • Q10
    Which statement correctly describes the location and charge of the protons in an atom?
    The protons are outside the nucleus and have no charge
    The protons are inside the nucleus and have no charge
    The protons are inside the nucleus and have a negative charge
    The protons are inside the nucleus and have a positive charge
    45s
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  • Q11
    An atom of a certain element has 36 protons, 36 electrons and a mass number of 84, at room temperature this element is a very stable gas. How many neutrons are in this atom?
    36
    48
    72
    42
    60s
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  • Q12
    How many protons, electrons, and neutrons are present in an atom of Hafnium (Hf) , with a mass number of 78?
    106 protons, 72 neutrons, 106 electrons
    72 protons, 178 neutrons, 106 electrons
    72 protons, 106 neutrons, 72 electrons
    178 protons, 250 neutrons, 72 electrons
    60s
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