18.1 Periodicity
Sorting elements into metals, metalloids, and nonmetals, then using group and period trends to predict main-group properties and reactivity.
7 exercises
18.1 Exercise 1
How do alkali metals differ from alkaline earth metals in atomic structure and general properties?
18.1 Exercise 3
Predict the formulas for the nine compounds that may form when each species in column 1 of the table reacts with each species in column 2.
18.1 Exercise 5
Sodium chloride and strontium chloride are both white solids. How could you distinguish one from the other?
18.1 Exercise 7
Write a balanced equation for the reaction of elemental strontium with each of the following:
(a) oxygen
(b) hydrogen bromide
(c) hydrogen
(d) phosphorus
(e) water
18.1 Exercise 9
What is the mass of fish, in kilograms, that one would have to consume to obtain a fatal dose of mercury, if the fish contains 30 parts per million of mercury by weight? (Assume that all the mercury from the fish ends up as mercury(II) chloride in the body and that a fatal dose is 0.20 g of HgCl2.) How many pounds of fish is this?
18.1 Exercise 11
Does metallic tin react with HCl?
18.1 Exercise 13
Compare the nature of the bonds in PbCl2 to that of the bonds in PbCl4.
Adapted from General Chemistry © 2019 Rice University. Licensed under CC BY 4.0. Sources: Chemistry 2e, Chemistry: Atoms First 2e. Imported at revision 32c7196.