Atoms
8 months ago
mrpecora
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20 QuestionsShow answers
  • Question 1
    30 seconds
    Q. all matter is made of what 
    answer choices
    energy 
    atoms 
    electrons 
    compounds 
  • Question 2
    30 seconds
    Q. The positive particles of an atom are 
    answer choices
    electrons 
    positrons 
    neutrons 
    protons 
  • Question 3
    30 seconds
    Q. the central region of an atom where its neutrons and protons are is its 
    answer choices
    nucleus 
    electron cloud
    core 
    center 
  • Question 4
    30 seconds
    Q. an atom with atomic number 6 would have how many protons 
    answer choices
    6
    12
    3
    cannot be determined 
  • Question 5
    30 seconds
    Q. Particles in an atom that are neutral and have no charge are 
    answer choices
    negatrons 
    electrons 
    neutrons 
    protons 
  • Question 6
    60 seconds
    Q. A particle that moves around the nucleus is a(n)...
    answer choices
    Proton
    Neutron
    Electron
    Quark
  • Question 7
    30 seconds
    Q.

    What does the 1.00794 stand for?

    answer choices

    mass number

    atomic number

    average atomic mass

    number of protons

  • Question 8
    60 seconds
    Q. What is the number of protons that the element in this image contain?
    answer choices
    14
    7
    15
    18
  • Question 9
    30 seconds
    Q.

    If an atom has 12 protons, which of the following must it also have to be considered a neutral atom?

    answer choices

    12 neutrons

    12 electrons

    12 protons

    24 protons and neutrons

  • Question 10
    30 seconds
    Q. If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
    answer choices
    10
    20
    30
  • Question 11
    30 seconds
    Q.

    What charge does an atom have when it GAINS electrons?

    answer choices

    Positive

    Negative

    Neutral

  • Question 12
    30 seconds
    Q.

    What two particles determine the mass number?

    answer choices

    Protons and electrons

    Electrons and neutrons

    Protons and neutrons

  • Question 13
    60 seconds
    Q.

    When an atom loses an electron, it becomes a(n) _____________ ion.

    answer choices

    positive

    negative

    neutral

    polyatomic

  • Question 14
    30 seconds
    Q.

    If the mass number of this chlorine atom is 36, how many neutrons does it have?

    answer choices

    17

    18

    19

    can't be determined

  • Question 15
    30 seconds
    Q.

    What is the atomic number of this atom shown in the Bohr model?

    answer choices

    11

    12

    13

    can't be determined

  • Question 16
    30 seconds
    Q.

    What is the mass number of the atom shown in the Bohr model?

    answer choices

    11

    12

    23

    Can't be determined

  • Question 17
    30 seconds
    Q.

    Is this atom an ion? If so what would it's charge be?

    answer choices

    Yes, 1-

    No it is neutral

    Yes, 1+

    Can't be determined

  • Question 18
    30 seconds
    Q.

    Most of the mass of an atom is found in the ______.

    answer choices

    nucleus

    proton

    electron cloud

    isotope

  • Question 19
    180 seconds
    Q. An atom with an unequal number of protons and electrons is said to have (a) ___.
    answer choices
    no charge
    balance
    charge
    unbalance
  • Question 20
    30 seconds
    Q. Two atoms of the same element but with different mass numbers are called________
    answer choices
    electrons
    isotopes
    variables
    electron cloud
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