anonymous
  • anonymous
Chemistry Question: Which of the following elements has two valence electrons? -Sr<
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Since valence electrons are those in the most outer shell of any element, I would say you chose the correct one!
anonymous
  • anonymous
Yay! I thought so but for some reason, I was thinking Na, Sodium, because I couldn't remember if it had 1 or 2 valence electrons, but I'm pretty sure it only has one... Thanks for your help!
anonymous
  • anonymous
Yeah sodium actually only has 1!

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anonymous
  • anonymous
okay, thanks again!
anonymous
  • anonymous
your correct ;D it is sr ;D
anonymous
  • anonymous
okay, thanks! I'm gonna be posting some more, do u think could u help me with those as well?
anonymous
  • anonymous
Carbon has an atomic number of 6, but the following orbital notation for carbon is incorrect. Explain the error in terms of the rules for electron arrangements.
anonymous
  • anonymous
anonymous
  • anonymous
sure ill help ;D
anonymous
  • anonymous
thanks! :)
anonymous
  • anonymous
Electrons repel each other, since they have like charges. You put them in different orbitals if at all possible, since that keeps them naturally further apart, and lowers the energy of the electron configuration. You only start doubling them up when you must.
anonymous
  • anonymous
I have read that one before, the link wont open properly
anonymous
  • anonymous
well thats the explaination and the picture should be like this |dw:1349193339649:dw|
anonymous
  • anonymous
do u think u could help me put it in my own word, i'm kind of bad at it but I do get the basic idea of what there saying. It just kind of confuses me, I wasn't able to read my lesson on this topic yet, so Im pretty much doing it from what I already know.
anonymous
  • anonymous
These are all of my questions answered, we can look over them later when we're done with the other one. http://answers.yahoo.com/question/index;_ylt=AoiOdWTAB6ymkg8yo6ZD147sy6IX;_ylv=3?qid=20121002090220AAnTWQD http://answers.yahoo.com/question/index?qid=20121002085855AAjGv2O
anonymous
  • anonymous
sorry lost connection there for a minute
anonymous
  • anonymous
Which of the following is a possible noble gas notation? -[Xe] 6s26p6 -[Kr] 5s25d85p6<
anonymous
  • anonymous
Which of the following is a reasonable ground-state electron configuration? -1s21p62s22p63s2 -1s22s22p63s23p64s24d8<

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