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Nicole asked in Science & MathematicsChemistry · 1 decade ago

Which of the following species does NOT have a stable electron configuration (i.e. like those of a noble gas)?

a) Cl-

b) K+

c) Al 3+

d) Mg+

e) S 2-

4 Answers

  • 1 decade ago
    Best Answer

    noble gases are very stable because they almost have octet. Thats why noble gases don't react much.

  • 3 years ago

    Do you recognize the way electron configurations paintings? look on the periodic table. what share areas from the leftmost row (such with the aid of fact the 1st row) shows what share extra electrons they have than the noble gasoline configuration, and how many areas far off from the rightmost row (no longer such with the aid of fact the rightmost row) shows what share fewer electrons they have than a noble gasoline configuration.. So Sodium has a million extra electron, Calcium has 2 extra electrons, Fluorine has a million fewer electrons, and so on... Use that and this question is trouble-free.

  • Anonymous
    1 decade ago

    Mg+ Mg has 12 protons and 12 electrons. If it loses one electron

    it has a plus one charge (Mg+). No noble gas has 11 electrons.

  • Anonymous
    1 decade ago

    d) is not stable, should be Mg+2

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