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22 August, 15:31

Describe in your own words why lithium, magnesium, and boron (groups 1,2,13) elements tend to form positive ions and fluorine, oxygen, and nitrogen (groups 15,16,17) tend to form positive ions.

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  1. 22 August, 15:45
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    Group 1,2,13 has valence electron less than 5 so it will donate electron to form pasitive ion while element group15,16,17 has valence electron more than 5 so it will receive electron to form negative ion actually, not positive ion dude!
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