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Atoms, Periodic Table, and Counting Atoms

Quiz by Jennifer Davis

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26 questions
Show answers
  • Q1

    How many carbon atoms are shown in this formula? 4C6H12O6

    24

    6

    24

    12

    30s
  • Q2

    This is a chemical formula for a sample of matter: 2H2SO4

    How many atoms of oxygen are found in one molecule of the sample of matter?

    4

    12

    8

    7

    30s
  • Q3

    C2H5OH

    What is the subscript for oxygen?

    2

    5

    1

    0

    30s
  • Q4

    What defines H2S?

    Colloid

    Compound

    Element

    Mixture

    30s
  • Q5

    Which has 2 atoms of carbon, 6 atoms of hydrogen, and 1 atom of oxygen?

    2CH5OH

    C2(OH)6 

    2CH6O

    C2H5OH

    120s
  • Q6

    What determines an element's identity?

    Neutrons

    Protons

    Electrons

    Atomic Number

    120s
  • Q7

    Which is an element?

    O2

    H2O

    CO2

    SO4

    120s
  • Q8

    How many elements are in one molecule of C6H12O6

    12

    3

    24

    6

    120s
  • Q9

    What element reacts similar to sodium (Na) but has a greater atomic mass?

    Magnesium (Mg)

    Potassium (K)

    Hydrogen (H)

    Helium (He)

    120s
  • Q10

    What property can you use to determine the identity of an unknown element?

    number of neutrons

    number of valence electrons

    the number of protons

    the reactivity of an unknown element

    120s
  • Q11

    Which atom has the highest mass number?

    Question Image

    D

    C

    B

    A

    120s
  • Q12

    Which atom has a negative charge? 

    Question Image

    D

    B

    C

    A

    120s
  • Q13

    What is the limitation of this model?

    Question Image

    the number of electrons on each energy level

    it shows how an atom is structured

    it does not tell you the mass of the atom

    it tells you the valence electrons

    120s
  • Q14

    What is true about electrons?

    they are inside the nucleus and have a negative charge

    they are outside the nucleus and have a positive charge

    they are outside the nucleus and have a negative charge

    they are inside the nucleus and have no charge

    120s
  • Q15

    What is the atomic mass of carbon if you have 5 neutrons?

    12

    11

    10

    13

    120s

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