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One gram of an element combines with 3.9 grams of chlorine.The element has a charge of +3. Element?
a) Fe
b) Al
c) B
d) Au
1 Answer
- 1 decade agoFavorite Answer
If the charge is +3, three atoms of chlorine (-1) have to combine with it, so the atom has to have 3.9*3, or 11.7 times the mass of chlorine. The mass of chlorine is 35.45, so 35.45*11.7 should give the atomic mass of the element, but it equals 414.765, which is much higher than the atomic mass of any element that's been discovered.
I might have made a mistake somewhere, but I think I did it right. Are you sure that was the question?