Rosa and Katie developed a deck of cards they can use to review the information on the periodic table. One game they
play involves pairing symbols of elements that have similar
properties.
(Hint: Use your periodic table)
Which of the following elements would form a pair?
A.Sn and Sb
B.Be and Ca
C.Pt and Hg
D.Ne and CI
The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.