Practice Periodic Table in Chemistry
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
An arrangement of elements by atomic number, showing periodic patterns in properties.
A map of all elements organized so similar ones are in the same column.
Example 1
easyUsing the periodic table, predict whether silicon (Si) is a metal, nonmetal, or metalloid. Justify your answer.
Example 2
mediumArrange the following elements in order of increasing atomic radius: \text{Na}, \text{Mg}, \text{K}, \text{Al}.
Example 3
easyWhich group of the periodic table contains the noble gases? Why are they chemically inert?
Example 4
mediumAn element is in Group 17 and Period 3 of the periodic table. What do the group and period tell you about its electrons?