Thursday
September 18, 2014

Homework Help: Chemistry

Posted by Lily on Saturday, October 20, 2012 at 8:45pm.

Suppose that a stable element with atomic number 119, symbol Wr, has been discovered.
(a) Write the ground-state electron configuration for Wr, showing only the valence-shell electrons.
(b) Would Wr be a metal or a nonmetal? Explain in terms of electron configuration.
(c) On the basis of periodic trends, would Wr have the largest atomic radius in its group or would it have the smallest? Explain in terms of electronic structure.
(d) What would be the most likely charge of the Wr ion in stable ionic compounds?
(e) Write a balanced equation that would represent the reaction of Wr with water.
(f) Assume that Wr reacts to form a carbonate compound.
(i) Write the formula for the compound formed between Wr and the carbonate ion, CO32.
(ii) Predict whether or not the compound would be soluble in water. Explain your reasoning.

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