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1st 6 weeks chemistry benchmark

Quiz by Ben Vogler

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20 questions
Show answers
  • Q1
    How do the three isotopes O-14, O-18, and O-20 differ?
    O-14 has 14 neutrons, O-18 has 18 neutrons, and O-20 has 20
    O-14 has 6 neutrons, O-18 has 10 neutrons, and O-20 has 12
    O-14 has 8 neutrons, O-18 has 8 neutrons, and O-20 has 8
    30s
  • Q2
    The reason carbon-12 and carbon-14 are different because
    the number of neutrons that are found in the nucleus
    location on the periodic table
    they're both noble gases
    its ability to form cations
    30s
  • Q3
    Boron-10 and Boron-11 are isotopes of the same element. What do they have in common?
    # of proton and neutrons
    Mass number
    # of neutrons
    Atomic number
    30s
  • Q4
    An atom loses an electron, what is its overall charge?
    +1
    -2
    +2
    -1
    30s
  • Q5
    Protons are found
    in the nucleus with electrons
    in the electron cloud
    in the nucleus
    Flying around in orbitals around the nucleus
    30s
  • Q6
    A nitrogen (N) atom has 7 protons, 9 neutrons and 10 electrons. What is the atomic mass of nitrogen?
    19 amu
    2 amu
    17 amu
    16 amu
    30s
  • Q7
    Electrons are found
    in the nucleus with protons
    in the electron cloud
    in the nucleus with neutrons
    30s
  • Q8
    Light is emitted when electrons
    collide with one another, releasing energy
    move from a lower energy level to a higher energy level
    Move from a higher energy level to a lower energy level
    move from one atom to another
    30s
  • Q9
    Group 1 on the periodic table (with the exception of hydrogen) is called
    Alkali metals
    Alkaline Earth metals
    Halogens
    Noble gases
    30s
  • Q10
    Elements in the same period have similar chemical properties
    False
    True
    30s
  • Q11
    How many valence electrons does Aluminum have?
    1
    8
    3
    4
    30s
  • Q12
    How many protons are found in an atom of lead (Pb)?
    122
    87
    207
    82
    30s
  • Q13
    Which element has similar chemical properties to sodium (Na)?
    Francium (Fr)
    Boron (B)
    Magnesium (Mg)
    Aluminum (Al)
    30s
  • Q14
    Atoms react with other atoms based off of their number of valence electrons. Which element has the most valence electrons?
    sodium (Na)
    beryllium (Be)
    oxygen (O)
    neon (Ne)
    30s
  • Q15
    Elements in the same group or family have the same number of valence electrons. How many valence electrons are in the Halogens family?
    7
    2
    8
    1
    30s

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