Which of the following is a metalloid that is also a chalcogen?

How many elements are classified as halogens on the modern periodic table?

Cu, Ag, and Au are all elements found in which group of the periodic table?

Which group of elements on the periodic table have the most similar chemical properties?

Which of the following elements is a semimetal located in group 5A of the periodic table?

Which of the following elements has properties most similar to Mg?

Refer to a periodic table. Which pair of elements do you expect to be most similar in their chemical properties? (LO 2.3) (a) K and Cu (b) O and Se (c) Be and B (d) Rb and Sr

Identify the location of the element in period 4, group 6A and classify it as a metal, nonmetal, or semimetal. (LO 2.2) (a) Element in position a; nonmetal (b) Element in position b; metal (c) Element in position c; semimetal (d) Element in position d; metal

Which description of an element is incorrectly matched with its location in the periodic table? (LO 2.5–2.6)

(a) Element 3—An element in the transition metal group that is a good conductor of electricity. (b) Element 2—An element that is in the halogen group and does not conduct electricity. (c) Element 4—An element in alkali metal group that is found in its pure form in nature. (d) Element 1—An element that is a solid at room tempera-ture, brittle, and a poor conductor of electricity.