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ATOMS TEST

Quiz by Jill A Van Plew

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25 questions
Show answers
  • Q1
    Which of the subatomic particles are found in the nucleus?
    electrons and protons
    electrons and neutrons
    all subatomic particles are found in the electron cloud
    neutrons and protons
    30s
  • Q2
    Look at the model. How many valence electrons are in the atom shown?
    Question Image
    6
    12
    13
    3
    30s
  • Q3
    Which of the following statements is true about the nucleus of an atom?
    The nucleus takes up a very small part of the atom.
    The nucleus takes up the same amount of space as the electron cloud of an atom.
    The nucleus forms the entire atom.
    The nucleus takes up most of the space of an atom.
    30s
  • Q4
    Which position on the baseball field would be most like the valence electrons on an atom?
    Question Image
    C
    A
    H
    F
    30s
  • Q5
    What is the mass number of a Potassium (K) atom that has 19 protons, 20 neutrons, and 19 electrons?
    39
    20
    58
    19
    30s
  • Q6
    The diagram shows an atom. How many protons are in the atom?
    Question Image
    4
    11
    12
    5
    30s
  • Q7
    An element's identity is defined by...
    its number of neutrons.
    its number of protons.
    its electrical charge.
    its number of electrons.
    30s
  • Q8
    Which of the following statements is NOT true about the subatomic particles?
    Proton, neutrons and electrons are all about the same size.
    Protons and electrons have the opposite electrical charges.
    Protons and neutrons are about the same size.
    Protons and neutrons are much larger than electrons.
    30s
  • Q9
    What is the total number of electrons in an atom with an atomic number of 13 and a mass number of 27?
    25
    48
    12
    13
    30s
  • Q10
    Titanium has an atomic mass of 47.88 and 22 electrons. How many neutrons does Titanium have? (Don't forget to round the atomic mass).
    25.88
    26
    25
    There is not enough information.
    30s
  • Q11
    The atomic mass of arsenic is 75 and has 33 electrons. How many neutrons does arsenic have?
    42
    75
    There is not enough information.
    33
    30s
  • Q12
    A model of a beryllium atom is shown. What type of particles are found in the cloud surrounding the atom's nucleus?
    Question Image
    Positively charged particles and negatively charged particles.
    Negatively charged particles only.
    Neutral particles and positively charged particles.
    Positively charged particles only.
    30s
  • Q13
    Chlorine has 17 electrons. How many valence electrons will this atom have?
    2
    17
    7
    8
    30s
  • Q14
    Which of the following best describes the subatomic particles that gives an element its atomic number?
    Negative charge, large mass, found outside the nucleus.
    Negative charge, little mass, found outside the nucleus.
    Positive charge, large mass, found inside the nucleus.
    Positive charge, little mass, found outside the nucleus.
    30s
  • Q15
    Look at the element box from the periodic table. What are the name and atomic number of the element represented above?
    Question Image
    Potassium, 19
    Potassium, 39.098
    K, 39.098
    K, 19
    30s

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