Which elements are metalloids? Check all that apply.borontungstenaluminumbismuthsilicontelluriumtin
metals onlymetals and metalloids✔ metalloids onlymetalloids and nonmetalsnonmetals only
metals onlymetals and metalloidsmetalloids onlymetalloids and nonmetals✔ nonmetals only
metals only✔ metals and metalloidsmetalloids onlymetalloids and nonmetalsnonmetals only
metals onlymetals and metalloidsmetalloids only✔ metalloids and nonmetalsnonmetals only
For each property listed, identify the type of element it describes.
✔ metals onlymetals and metalloidsmetalloids onlymetalloids and nonmetalsnonmetals only
brittle✔ semiconductingvolatileinsulating
Metalloids are useful as semiconductors in modern electronics, like smartphones. Which feature of a smartphone is made possible by metalloids?
Which elements can form acidic compounds? Check all that apply.sulfurrubidiumarsenicseleniumsiliconxenonantimony
Which elements can form basic compounds? Check all that apply.sulfurrubidiumarsenicseleniumsiliconxenonantimony
✔ metallicanitmonynonmetals
⇒ C
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In group 13, the only metalloid, boron, is at the very top of the group. Explain why the rest of the group has metallic behavior but boron does not.
All the elements in group 13 have only 3 valence electrons, which means it is a little bit easier for them to lose those 3 electrons than it would be for them to gain 5 to form a full shell. However, it is also easier for elements with fewer electron shells to gain electrons. Since boron only has two electron shells, it is about as capable of gaining electrons as it is of losing electrons, so it behaves as a metalloid. The other elements in this group have more electron shells, so it is much easier for them to lose their valence electrons and they behave like metals.
brominecarbonsodium✔ tellurium
The position of metalloids on the periodic table is generally found along a diagonal line betweenand nonmetals.
What did you include in your response? Check all that apply.
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