Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
Write a chemical formula for each substance, and draw a nanoscale picture of how the molecules are arranged at room temperature.
(a) Water, a liquid whose molecules contain two hydrogen atoms and one oxygen atom each
(b) Nitrogen, a gas that consists of diatomic molecules
(c) Neon
(d) Chlorine
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