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Atomic Mass, Atomic #, & Mass #

Quiz by Lindsay Norcross

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12 questions
Show answers
  • Q1
    The atomic number is the number of protons in an atom and is always...
    a whole number ratio
    a decimal
    a whole number
    a fraction
    20s
  • Q2
    The number of protons in a given element will...
    rapidly change
    never change
    change often
    sometimes change
    20s
  • Q3
    The ___________ ______________ is the weighted average of all an element's isotopes.
    atomic mass
    mass number
    isotope number
    atomic weight
    20s
  • Q4
    The mass number is always a whole number and is...
    the number of protons + electrons
    the number of isotopes
    the number of neutrons + electrons
    the number of protons + neutrons
    20s
  • Q5
    If the mass number of "Candium" is 40, how many neutrons are in a neutral atom of this element?
    15
    10
    30
    20
    20s
  • Q6
    Isotopes have the same number of protons and are chemically alike but ...
    have different mass numbers
    have different atomic numbers
    have different names
    have different numbers of electrons
    20s
  • Q7
    What are the two types of ions?
    dogians & antions
    portions & anions
    cations & dogians
    cations & anions
    20s
  • Q8
    A cation is a ion with a ________________ charge.
    negative
    neutral
    electric
    positive
    20s
  • Q9
    Which of the following are a cation?
    So-3
    S-2
    Na+2
    Na-2
    20s
  • Q10
    An anion is an ion that has a _________________ charge.
    neutral
    negative
    positive
    electric
    20s
  • Q11
    Which of the following is not an anion?
    F-1
    N-3
    O+2
    O-2
    20s
  • Q12
    How many protons are in C-12? C-13? C-14?
    6, 6, 6
    5, 6, 7
    6, 7, 8
    8, 9, 10
    20s

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