Match each group to the correct property. Refer to the periodic table if you need help.
alkali metals
halogens
noble gases
solids at room temperature
Answer (1)
Alkali metals are metals.
Halogens are nonmetals.
Noble gases are nonmetals.
The matches are based on the groups' positions in the periodic table and their characteristic properties. Alkali metals: metals, Halogens: nonmetals, Noble gases: nonmetals
Explanation
Understanding the Problem We need to match the given groups (alkali metals, halogens, noble gases) with their properties based on the periodic table provided.
Identifying Alkali Metals Alkali metals are in Group 1 (except for Hydrogen). They are known to be metals.
Identifying Halogens Halogens are in Group 17. They are known to be nonmetals.
Identifying Noble Gases Noble gases are in Group 18. They are known to be nonmetals.
Matching Groups to Properties Therefore, the matches are:
Alkali metals: metals
Halogens: nonmetals
Noble gases: nonmetals
Examples
Understanding the properties of elements in the periodic table is crucial in chemistry. For example, knowing that alkali metals are highly reactive metals helps in predicting their behavior in chemical reactions, such as their tendency to form ionic compounds with halogens. Similarly, recognizing noble gases as inert nonmetals explains their use in applications where chemical reactivity is undesirable, such as in lighting and protective atmospheres. This knowledge is fundamental in designing experiments, understanding chemical processes, and developing new materials.
