6. The table shows the physical properties of an unknown substance after it was tested in a lab. What is the unknown substance most likely?
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1 point
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Alloy
Metalloid
Nonmetal
Metal
3 answers
Unfortunately, the given table is missing and it is not possible to determine the physical properties of the unknown substance. Therefore, it is not possible to determine its most likely classification as alloy, metalloid, nonmetal, or metal.
7. Paul made a list about alkaline earth metals. Paul made a mistake on his list. Which BEST describes the mistake Paul made?
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1 point
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Alkaline earth metal ions will not be positive two; the ions will be negative two.
Alkaline earth metals do not include elements Be, Mg, and Ca; they include Co, Ni, and Cu.
Alkaline earth metals are not found in group two; they are found in group one.
Alkaline earth metals do not gain two electrons; they lose two electrons.
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1 point
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Alkaline earth metal ions will not be positive two; the ions will be negative two.
Alkaline earth metals do not include elements Be, Mg, and Ca; they include Co, Ni, and Cu.
Alkaline earth metals are not found in group two; they are found in group one.
Alkaline earth metals do not gain two electrons; they lose two electrons.
The mistake that Paul made is: "Alkaline earth metal ions will not be positive two; the ions will be negative two."
4 answers