science

Which two elements have the same number of energy levels with electrons in them?
A. krypton and neon****
B. neon and sodium
C. lithium and francium
D. boron and oxygen

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  1. all of the outermost energy levels of hydrogen, lithium, and sodium atoms are part of the same sublevel (s-sublevel) and contain the same number of electrons
    boron and oxygen

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  2. I don't agree with your choice.
    Ne is 2 and 8 which is 2 energy levels.
    Kr is 2 and 8 and 18 and 8 which is 4 energy levels.
    In fact, you KNOW it can't be two elements in different periods because each period has at least another energy level. So look for two elements in the same period.

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  3. Don’t be rude tho

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  4. irk

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  5. 1.Calcium
    2.Chlorine
    3.An electron in the outer energy level of an atom
    4.A row of elements
    5.Boron and Oxygen

    I got 3/5 bc i couldnt find correct answers so here

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  6. is right
    5/5

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  7. can confirm 5/5

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  8. where the answer i dont understand how people get an answer from this or its just me

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  9. oh never mind i found it

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  10. wait i am on the wrong question nvm i dont see answer on this either

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  11. bro just give the answer

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