Write the symbol and name of the element that fits each
Chapter , Problem 129(choose chapter or problem)
Write the symbol and name of the element that fits each description. (Chapter 6) a. the second-lightest of the halogens b. the metalloid with the lowest period number c. the only group 16 element that is a gas at room temperature d. the heaviest of the noble gases e. the group 15 nonmetal that is a solid at room temperature
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