October 27, 2016

Homework Help: science help needed

Posted by sam on Thursday, November 15, 2007 at 8:57pm.

Question complete the diagram below by using arrows, words and or numbers to show how properties of te helements vary across a period.

Electron arrangement left right
1 2 3 4 3 2 1 0

1. loss

2. Energy
needed to
remove an electron

can someone help me with the first one thanks so much

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