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Metals and Non-metals Quiz

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Questions and Answers

Which of the following is a characteristic of non-metals?

They are good conductors of electricity.

They typically have high melting points.

They usually form basic oxides.

They are often brittle. (correct)

What is a typical property of metal oxides?

They have low melting points.

They are usually acidic.

They are most often gases at 20 °C.

They are typically basic. (correct)

Which element would likely be classified as a non-metal based on its properties?

Element W with a melting point of 1000 °C and acidic oxide.

Element Z with a melting point of -220 °C and high conductivity.

Element X with a melting point of 660 °C and high conductivity.

Element Y with a melting point of 39 °C and 0 conductivity. (correct)

How do metals and non-metals typically react with oxygen?

Metals usually form basic oxides while non-metals form acidic oxides. Signup and view all the answers

Which of the following properties typically does NOT describe a non-metal?

Good electrical conductivity. Signup and view all the answers

Which of the following is true about most non-metal oxides?

They are typically gases at 20 °C. Signup and view all the answers

What describes a typical property of metals?

They typically exhibit high electrical conductivity. Signup and view all the answers

Which statement most accurately describes a metalloid?

Metalloids possess properties of both metals and non-metals. Signup and view all the answers

Study Notes

Metals and Non-metals

Metals generally have high melting and boiling points, and are solid at 20°C.
Many non-metals are gases or low-melting solids at 20°C.
Some metals are liquid at 20°C (e.g., mercury).
Metalloids have properties intermediate between metals and non-metals.
Metalloids are often semiconductors.

Properties of Metals

Metals are usually good conductors of electricity.
Metals are often malleable (can be hammered into shapes).
Metals are often ductile (can be drawn into wires).
Metals often have a shiny or lustrous appearance.
Metal oxides are usually basic.

Properties of Non-metals

Non-metals are usually poor conductors of electricity.
Non-metals are often brittle.
Non-metals are often dull in appearance.
Non-metal oxides are usually acidic.

Metal and Non-metal Reactions

Many metals react with oxygen to form metal oxides typically solids at 20°C.
Many non metals react with oxygen to form non-metal oxides.
Metal oxides tend to be basic when dissolved in water, whereas non-metal oxides tend to be acidic when dissolved in water.
Acid rain is caused by non-metal oxides dissolving in rain water.

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Description

Test your knowledge on the properties and reactions of metals and non-metals. This quiz covers key concepts like conductivity, malleability, and the characteristics of metalloids. Dive in to see how well you understand these foundational elements of chemistry!