Which properties will elements in group 17 share, based on location in the periodic table? (Choose 2 answers.)

Rationale

Poor thermal conductivity and poor electrical conductivity are properties shared by elements in group 17.

Elements in group 17, also known as the halogens, are nonmetals that typically exhibit poor thermal and electrical conductivity. Their chemical properties are largely influenced by their electron configurations, leading to high electronegativity and a tendency to form covalent bonds rather than metallic bonds, which results in low conductivity.

A (Poor thermal conductivity) CORRECT

Halogens, such as fluorine, chlorine, bromine, and iodine, are nonmetals that do not conduct heat well. Their atomic structures lack free-moving electrons, which are essential for thermal conduction. As a result, they are characterized by low thermal conductivity, making this a correct shared property.

B (Good thermal conductivity) YOUR ANSWER

This option is incorrect as halogens are known for poor thermal conductivity due to their nonmetallic nature. Unlike metals, which have free electrons that facilitate heat transfer, halogens do not possess this characteristic, leading to their inability to conduct heat effectively.

C (Good electrical conductivity) YOUR ANSWER

Halogens are also poor conductors of electricity as they lack the free-moving charge carriers found in metals. Their nonmetallic properties mean they do not facilitate the flow of electric current effectively, making this choice incorrect for group 17 elements.

D (Poor electrical conductivity) CORRECT

Elements in group 17 exhibit poor electrical conductivity, aligning with their nonmetallic nature. The absence of free electrons limits their ability to conduct electricity, making this a correct shared property among these elements.

Conclusion

Elements in group 17 share the properties of poor thermal and electrical conductivity due to their nonmetallic character and lack of free-moving charge carriers. These shared traits are significant in understanding their chemical behavior and interactions, distinguishing them from metals and influencing their uses in various applications.

Which properties will elements in group 17 share, based on location in the periodic table? (Choose 2 answers.)

Poor thermal conductivity and poor electrical conductivity are properties shared by elements in group 17.

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