Posted by **Sara** on Tuesday, April 13, 2010 at 11:05pm.

is there a pattern betweent he # of electrons in the outers shell of an element and its position along the row in the Perioidic table. whats the pattern?

I know that there is a pattern, but I'm unable to explain. I looked at the first group of elements which included Hydrogen, Lithium, Sodium, etc. Their outer shell only contains one electron.

How can I explain better?

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