Podcast
Questions and Answers
What is the effect of moving down a group in the periodic table on the melting and boiling points of solids?
What is the effect of moving down a group in the periodic table on the melting and boiling points of solids?
- They decrease. (correct)
- They remain constant.
- They increase significantly.
- They fluctuate unpredictably.
Which of the following properties is true for non-metals?
Which of the following properties is true for non-metals?
- They are good conductors of electricity.
- They are sonorous.
- They form acidic oxides. (correct)
- They are shiny when cut.
What happens to air pressure as you climb higher up a mountain?
What happens to air pressure as you climb higher up a mountain?
- It increases due to less air above you.
- It decreases due to less air above you. (correct)
- It fluctuates unpredictably with weather changes.
- It remains the same regardless of altitude.
What determines whether an object will float or sink in a fluid?
What determines whether an object will float or sink in a fluid?
What is the process called when a more reactive substance displaces a less reactive substance?
What is the process called when a more reactive substance displaces a less reactive substance?
How can drag on an object be minimized?
How can drag on an object be minimized?
What is the boiling point of a substance?
What is the boiling point of a substance?
What characteristic is typical of metals compared to non-metals?
What characteristic is typical of metals compared to non-metals?
Which property is characteristic of metals?
Which property is characteristic of metals?
The boiling point of a substance increases as you move down a group in the periodic table.
The boiling point of a substance increases as you move down a group in the periodic table.
What happens to the density of an object if it will float in water?
What happens to the density of an object if it will float in water?
The transfer of heat or electricity through a material is known as __________.
The transfer of heat or electricity through a material is known as __________.
Match the following terms with their definitions:
Match the following terms with their definitions:
What is the primary reason for decreased air pressure at higher altitudes?
What is the primary reason for decreased air pressure at higher altitudes?
Non-metals are known to be sonorous.
Non-metals are known to be sonorous.
What effect does increasing speed have on drag?
What effect does increasing speed have on drag?
What property increases as you move down a group in the periodic table?
What property increases as you move down a group in the periodic table?
Non-metals are good conductors of electricity.
Non-metals are good conductors of electricity.
What happens to the boiling point of a substance as you move down a group in the periodic table?
What happens to the boiling point of a substance as you move down a group in the periodic table?
A substance that has a density less than 1 g/cm3 will __________ in water.
A substance that has a density less than 1 g/cm3 will __________ in water.
Match the following properties with their corresponding type of element:
Match the following properties with their corresponding type of element:
What effect does drag have on an object moving through a fluid?
What effect does drag have on an object moving through a fluid?
As you go deeper into the sea, the pressure decreases.
As you go deeper into the sea, the pressure decreases.
What term refers to the amount of matter in a given volume?
What term refers to the amount of matter in a given volume?
Flashcards
Boiling Point
Boiling Point
The temperature at which a substance changes from liquid to gas (evaporates) or from gas to liquid (condenses).
Brittle
Brittle
Hard but easily broken.
Conduction
Conduction
The transfer of heat or electricity through a material.
Density
Density
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Displacement Reaction
Displacement Reaction
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Floating
Floating
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Drag
Drag
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Ductility
Ductility
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Properties of Metals
Properties of Metals
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Properties of Non-metals
Properties of Non-metals
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Reactivity of Metals
Reactivity of Metals
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Melting and Boiling Points of Metals
Melting and Boiling Points of Metals
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Pressure and Depth
Pressure and Depth
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Floating and Sinking
Floating and Sinking
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Reducing Drag
Reducing Drag
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Metal Reactivity
Metal Reactivity
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Metal Melting/Boiling Points
Metal Melting/Boiling Points
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Floating Objects
Floating Objects
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What is displacement reaction?
What is displacement reaction?
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Study Notes
Properties of Metals and Non-Metals
-
Metals:
- Solids at room temperature (melting and boiling points decrease moving down the group)
- Very reactive (reactivity increases moving down the group)
- Good conductors of heat and electricity
- Soft
- Shiny when cut
- Low density
-
Non-Metals:
- Dull
- Poor conductor of heat
- Poor conductor of electricity
- Not sonorous
- Oxides form acidic solutions
- Low density
- Brittle
Key Terms & Definitions
- Boiling Point: The temperature at which a substance changes from liquid to gas (evaporates) or from gas to liquid (condenses).
- Brittle: Hard but easily broken.
- Conduction: The transfer of heat or electricity through a material.
- Density: The mass of a substance divided by its volume. Higher density means heavier for its size.
- Displacement Reaction: A reaction in which a more reactive substance displaces a less reactive substance.
- Ductile: Can be stretched into wires.
- Dull: Not shiny.
- Magnetic Material: A type of material with the ability to become magnetized.
Pressure and Density
- Pressure increases with the amount of material (like water) above.
- Density affects whether something floats or sinks. If an object's density is less than the fluid's density, it will float. Water's density is 1 g/cm³.
- Drag: Air or water resistance. It increases with speed and smooth surfaces reduce it.
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