The chart shows properties of four elements.

Based on these properties, which element is most likely a nonmetal?

• Element 1

• Element 2

• Element 3

• Element 4

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112.18.b.6.A

​ (a)   tend to be good conductors of thermal energy.

​ (b)   tend to be good insulators of thermal energy.

• Metals
• Nonmetals
• Noble Gases
• Metalloids

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112.18.b.6.A

A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal. Which question will best help the student classify the material?

• Is the material malleable or ductile?

• Does the material feel hard to the touch?

• Will the material float in water?

• Does the material feel rough or smooth?

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112.18.b.6.A

Which statement does NOT correctly compare silicon with another element?

• Silicon is a better conductor of electricity than sulfur

• Silicon conducts electricity as well as copper does

• Silicon is a solid at room temperature, but argon is a gas

• Silicon is less malleable than silver

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112.18.b.6.A

Aluminum, sulfur, and chlorine are elements found on the periodic table. Tests involving these three elements would show that at normal room temperature -

• sulfur is malleable and aluminum conducts electricity

• chlorine is malleable and conducts electricity

• aluminum is malleable and conducts electricity

• all three elements are malleable and conduct electricity

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112.18.b.6.A

Based on these observations, which sample is most likely a nonmetal?

• Sample 1

• Sample 2

• Sample 3

• Sample 4

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112.18.b.6.A

Which shaded region represents the metalloids on the periodic table?

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Which shaded region represents the nonmetals on the periodic table?

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Which shaded region represents the metals on the periodic table?

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Which shaded area has elements with properties of metals and nonmetals?

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NGSS.MS-PS1-1