level 1
What is a property that all metals share?
a. Brittle
b. High conductivity
c. Dull
d. Poor heat transfer
Answer: b. High conductivity
What makes metals malleable?
a. They are hard to bend.
b. They can be flattened without breaking.
c. They are always brittle.
d. They do not conduct electricity.
Answer: b. They can be flattened without breaking.
Which group of elements is highly reactive with metals?
a. Noble gases
b. Metalloids
c. Halogens
d. Transition metals
Answer: c. Halogens
Which of these is a property of a metalloid?
a. Always conducts electricity
b. Is completely unreactive
c. Can conduct electricity under certain conditions
d. Is always brittle
Answer: c. Can conduct electricity under certain conditions
What is a common property of all metals?
a. They are brittle.
b. They are good conductors.
c. They do not react with water.
d. They are gases at room temperature.
b. They are good conductors.
Which group contains noble gases?
a. Group 1
b. Group 17
c. Group 18
d. Group 14
Answer: c. Group 18
What is a characteristic property of nonmetals?
a. They are shiny.
b. They conduct electricity well.
c. They are often brittle.
d. They are malleable.
Answer: c. They are often brittle.
What is the typical appearance of metals?
a. Shiny
b. Dull
c. Transparent
d. Brittle
Answer: a. Shiny
Which nonmetal is essential for life and found in water?
a. Oxygen
b. Iron
c. Silicon
d. Argon
Answer: a. Oxygen
What do metalloids do that makes them useful in electronics?
a. Insulate electricity completely
b. React with water
c. Partially conduct electricity
d. Do not react with any element
Answer: c. Partially conduct electricity
Which element is a metalloid?
a. Helium
b. Silicon
c. Iron
d. Chlorine
Answer: b. Silicon
Which of the following is an example of a noble gas?
a. Fluorine
b. Helium
c. Iron
d. Silicon
Answer: b. Helium
What are noble gases primarily used for?
a. Chemical reactions
b. Conducting electricity
c. Lighting and inert environments
d. Food preservation
Answer: c. Lighting and inert environments
What type of element is chlorine?
a. Noble gas
b. Alkali metal
c. Halogen
d. Metalloid
Answer: c. Halogen
What do metalloids do that makes them useful in electronics?
a. Insulate electricity completely
b. React with water
c. Partially conduct electricity
d. Do not react with any element
Answer: c. Partially conduct electricity
How are halogens classified in the periodic table?
a. Group 1
b. Group 17
c. Group 18
d. Group 14
Answer: b. Group 17
Which element is most likely to be used as a semiconductor?
a. Oxygen
b. Sulfur
c. Silicon
d. Iron
Answer: c. Silicon
Which element is likely to be found in electronics?
a. Neon
b. Argon
c. Germanium
d. Sodium
Answer: c. Germanium
Which element would most likely be a poor conductor of electricity? a. Copper
b. Silver
c. Sulfur
d. Aluminum
Answer: c. Sulfur
Which nonmetal is also found in Group 17?
a. Neon
b. Chlorine
c. Sodium
d. Helium
Answer: b. Chlorine
What property does a semiconductor have?
a. It always conducts electricity.
b. It never conducts electricity.
c. It conducts electricity under certain conditions.
d. It reflects light.
Answer: c. It conducts electricity under certain conditions.
What makes hydrogen unique compared to other elements?
a. It is always found in solid form.
b. It can behave like a metal or nonmetal.
c. It is a metalloid.
d. It is unreactive.
Answer: b. It can behave like a metal or nonmetal.
What physical property of nonmetals makes them unsuitable for electrical wiring?
a. High reactivity
b. Poor conductivity
c. High luster
d. Malleability
Answer: b. Poor conductivity
Why are noble gases often used in signs and lights?
a. They react with electricity.
b. They are highly reactive.
c. They emit light when electrically excited.
d. They are malleable.
Answer: c. They emit light when electrically excited.
What group is least likely to form compounds? a. Halogens
b. Noble gases
c. Alkali metals
d. Metalloids
Answer: b. Noble gases