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Questions and Answers
Which characteristics are typically associated with metals?
Which characteristics are typically associated with metals?
- Liquid, dull, and pink in color
- Soft, weak, and poor conductors of electricity
- Solid, shiny, and silvery grey in color (correct)
- Gas, transparent, and low melting points
What percentage of Earth's crust is made from metallic or semi-metallic atoms?
What percentage of Earth's crust is made from metallic or semi-metallic atoms?
- 70%
- 50% (correct)
- 90%
- 30%
Which elements are usually considered as metals?
Which elements are usually considered as metals?
- Aluminium and iron (correct)
- Nitrogen and neon
- Silicon and sulfur
- Oxygen and carbon
What physical properties do semi-metals or metalloids exhibit?
What physical properties do semi-metals or metalloids exhibit?
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How are nonmetals generally defined?
How are nonmetals generally defined?
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What are some examples of semi-metals mentioned in the text?
What are some examples of semi-metals mentioned in the text?
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Which group of elements is often printed separately on the periodic table?
Which group of elements is often printed separately on the periodic table?
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What is an alloy?
What is an alloy?
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What process is used to make plastics look like shiny metals?
What process is used to make plastics look like shiny metals?
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Which material conducts electricity only under special conditions?
Which material conducts electricity only under special conditions?
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