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Flashcards reviewing key concepts about metals, non-metals, physical properties, and chemical symbols.
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Which of the following is not a property of most metals?
Brittle
Which of the following is not true about non-metals?
High density
Which property of zinc makes it suitable for electrical wiring?
Good conductor of electricity
Which of the following is a property of metals?
Metals are strong and malleable
Elements with some metal and non-metal properties are called…
Metalloids
Which of the following is not true about non-metals? (dull, low density, brittle)
All of the above
What do compounds contain, according to Dalton's Atomic Model?
Atoms of different elements joined together.
What's one of the key learning objectives regarding elements and their physical properties?
Recalling that different elements have different physical properties.
What are some examples of metals?
Gold, Copper, Iron, Nickel, Silver
What are some examples of non-metals?
Diamond, Oxygen, Carbon, Silicon, Boron
True or false: Metals usually have low melting points.
False
True or false: Non-metals usually have low melting points.
True
What is the typical state of metals at room temperature?
Typically solid at room temperature.
Are metals typically good or poor conductors of electricity?
Good conductors of electricity.
What are characteristics of Physical Changes?
Involve only one substance, Often easy to reverse, No new substances formed, No change in mass
Changing the state of matter, such as melting ice, would be an example of what type of change?
Physical change
Boiling water to produce steam would be an example of what type of change?
Physical change
Evaporating water from a puddle is what type of change?
Physical change
What do modern chemical symbols consist of?
One or two letters e.g. C for carbon and Cl for chlorine
Who are modern chemical symbols agreed upon by?
Agreed by the IUPAC
A material that is easily shattered or broken is…
Brittle
What is a common characteristic of non-metals regarding their density?
Low density
If a substance is able to transmit electrical current, it is known as a…
Good conductor of electricity
If a substance can be hammered or pressed permanently out of shape without breaking or cracking, it's known as…
Malleable
Elements with intermediate properties between metals and nonmetals are categorized as…
Metalloids
Non-metals are generally…
Dull, have low density, and are brittle
In Dalton's Atomic Model, what's the composition of compounds?
Atoms of different elements joined together.
An important concept to remember is…
Different elements have different physical properties.
List examples of metals:
Gold, Copper, Iron, Nickel, Silver
List examples of non-metals:
Diamond, Oxygen, Carbon, Silicon, Boron
Metals typically have…
High melting points.
Non-metals typically have…
Low melting points.
The typical state of metals is…
Typically solid at room temperature.
Metals are known for…
Being good conductors of electricity.
Physical changes generally…
Involve only one substance, are often easy to reverse, form no new substances, and have no change in mass
A change in the state of matter is considered a…
Physical change
Producing steam from boiling water represents