lola asked in Science & MathematicsChemistry · 1 decade ago

chemistry SMART PEOPLE!!?

ok here they are

1. which element has the following electron configuaration 1s^2, 2s^2 , 2p^6, 3s^2, 3p^6, 4s^2, 3d^7

2. which sublevel has the lowest energy? 3p, 3s, 3d, 4s ?

3. which sublevel has the highest energy? 5s, 2p, 4s, 4p

4. which element has the following noble gas or short hand configuration? [Ag] 4s^2 3d^3 ,, what is it potassium, sodium, aluminum, vandium??

5. how many valence electrons does sulfer (z=16) have

8, 6, 3, 4 ??

thanks,, forst to answer correctly fisr gets 10 p

3 Answers

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  • Dr.A
    Lv 7
    1 decade ago
    Favorite Answer

    1. Co

    2 . 3s

    3. 5s

    4. Vanadium

    5. Sulfur has 2 , 4 and 6 valences

  • 1 decade ago

    1. Co

    2. 3s

    3. either 5s or 4p

    4. V (and by the way... u meant [Ar]right?)

    5.6 (only 6... because u only ask for its valence e, not all the valence e on each shell )

    Source(s): Biology Major (takes chem classes..)
  • 1 decade ago

    Dr. A is right, but for your question four it is [Ar] for argon, not Ag, that is silver.

    Also, for 5 I believe the one your teacher is looking for would be 6.

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