Drag each tile to the correct box. Elements of each group in the periodic table have certain characteristic properties. Match each group to the correct property. Refer to the periodic table if you need help.
[Periodic Table Image - Not Rendered]
alkali metals
halogens
noble gases
Answer (2)
Alkali metals are highly reactive metals.
Halogens are highly reactive nonmetals.
Noble gases are generally unreactive gases.
Explanation
Understanding the Problem We need to match each group of elements (alkali metals, halogens, noble gases) to their characteristic properties using the periodic table.
Identifying Alkali Metals Alkali metals are in Group 1 (except for Hydrogen). They are highly reactive metals that readily lose one electron to form a +1 ion.
Identifying Halogens Halogens are in Group 17. They are highly reactive nonmetals that readily gain one electron to form a -1 ion.
Identifying Noble Gases Noble gases are in Group 18. They are generally unreactive gases due to their full valence electron shells.
Matching Groups to Properties Therefore, the matches are:
Alkali metals: Highly reactive metals
Halogens: Highly reactive nonmetals
Noble gases: Generally unreactive gases
Examples
Understanding the properties of elements in the periodic table is crucial in chemistry. For example, knowing that alkali metals are highly reactive helps in predicting their behavior in chemical reactions, such as their tendency to form strong bases when reacting with water. Similarly, the inertness of noble gases makes them suitable for applications where reactivity is undesirable, such as in lighting or as protective atmospheres in welding.
Alkali metals are highly reactive metals in Group 1, halogens are highly reactive nonmetals in Group 17, and noble gases are generally unreactive gases in Group 18 of the periodic table.
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