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An element has the electronic configuration 1s2, 2s2, 2p6, 3s2, 3p2. Its valency electrons are:
(1) 6
(2) 2
(3) 3
(4)4
Ans: 4
By who can sublimation be useful? How can it be useful?
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For">http://imageshack.us/photo/my-images/213/chemistyr.png/ For these structures? I''m not sure how to answer it.
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#question. what are paints
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