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 2 years ago
Chemistry Question: Which of the following elements has two valence electrons?
Sr<<My answer
Na
Al
B
is this right?
 2 years ago
Chemistry Question: Which of the following elements has two valence electrons? Sr<<My answer Na Al B is this right?

This Question is Closed

joshuamcelwain
 2 years ago
Best ResponseYou've already chosen the best response.1Since valence electrons are those in the most outer shell of any element, I would say you chose the correct one!

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2Yay! 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!

joshuamcelwain
 2 years ago
Best ResponseYou've already chosen the best response.1Yeah sodium actually only has 1!

Susan9419
 2 years ago
Best ResponseYou've already chosen the best response.1your correct ;D it is sr ;D

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2okay, thanks! I'm gonna be posting some more, do u think could u help me with those as well?

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2Carbon 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.

Susan9419
 2 years ago
Best ResponseYou've already chosen the best response.1Electrons 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.

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2I have read that one before, the link wont open properly

Susan9419
 2 years ago
Best ResponseYou've already chosen the best response.1well thats the explaination and the picture should be like this dw:1349193339649:dw

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2do 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.

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2These 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

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2sorry lost connection there for a minute

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2Which of the following is a possible noble gas notation? [Xe] 6s26p6 [Kr] 5s25d85p6<<My answer [Xe] 6s25d106p4 [Kr] 5s24d105p3

Renee99
 2 years ago
Best ResponseYou've already chosen the best response.2Which of the following is a reasonable groundstate electron configuration? 1s21p62s22p63s2 1s22s22p63s23p64s24d8<<My answer 1s22s22p63p6 1s22s22p63s1
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