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ChemThink Ions
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  • Question 1
    30 seconds
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    Q.

    What happened to the atom that has this symbol: S2-

    answer choices

    It has gained 2 extra protons

    It has gained 2 extra electrons

    It has lost 2 protons

    It has lost 2 electrons

  • Question 2
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    Q.

    If an ion has 13 protons and 10 electrons, what is the charge on the ion?

    answer choices

    positive 3

    negative 3

    10

    13

  • Question 3
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    Q.

    If an ion has 34 protons and 36 electrons, what is the charge on the ion?

    answer choices

    positive 2

    negative 2

    34

    36

  • Question 4
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    Q.

    If an ion has 35 protons and 36 electrons, what is the charge on the ion?

    answer choices

    1+

    1-

    35

    36

  • Question 5
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    Q.

    Give the ion symbol for the ion that has 15 protons and 18 electrons.

    answer choices

    P3-

    P3+

    P15

    P18

  • Question 6
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    Q.

    If a -1 ion has 10 electrons, what element is it?

    answer choices

    Neon (Ne)

    Sodium (Na)

    Fluorine (F)

    Oxygen (O)

  • Question 7
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    Q.

    If a -2 ion has 34 protons, what element is it?

    answer choices

    Germanium (Ge)

    Selenium (Se)

    Krypton (Kr)

    Chlorine (Cl)

  • Question 8
    30 seconds
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    Q.

    Complete the ion symbol for the atom below. (Blue dots represent protons)

    answer choices

    Li+

    Li-

    Be2+

    Be2-

  • Question 9
    30 seconds
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    Q.

    Complete the ion symbol for the atom below. (Blue dots represent protons)

    answer choices

    O2-

    O2+

    F+

    F-

  • Question 10
    30 seconds
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    Q.

    How many protons would be found in the ion whose symbol is O2- ?

    answer choices

    8

    16

    10

    6

  • Question 11
    30 seconds
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    Q.

    If an ion has 26 protons and 24 electrons, what is the charge of the ion?

    answer choices

    26

    24

    2+

    2-

  • Question 12
    30 seconds
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    Q.

    Choose each particle that has a positive charge.

    answer choices

    Protons

    Neutrons

    Electrons

    None of the above

  • Question 13
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    Q.

    How many electrons would be found in the ion whose symbol is N3- ?

    answer choices

    10

    7

    4

    3

  • Question 14
    30 seconds
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    Q.

    If a +1 ion has 29 protons, what element is it?

    answer choices

    Silicon (Si)

    Nickle (Ni)

    Copper (Cu)

    Zinc (Zn)

  • Question 15
    30 seconds
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    Q.

    Give the ion symbol for the ion that has 27 protons and 24 electrons.

    answer choices

    Co3+

    Co3-

    Cr3+

    Cr3-

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