Metals, Nonmetals, & Metalloids 1
Density 1
Physical Properties
Density 2
Metals, Nonmetals, & Metalloids 2
100
Most elements on the Periodic Table are classified
as _____?
Metals
100
What is the formula used to calculate density?
Density = Mass / Volume
(Mass divided by Volume)
100
Describe the physical properties of metalloids.
Elements that have properties of both metals and nonmetals.
Sometimes referred to as semiconductors.
100
What is density?
Relates the amount of matter in a substance to its volume.
100
Where are metalloids found on the Periodic Table?
Along the zig-zag line (stair steps)
200
Jassell is examining an object in science class.
It is a pale yellow, brittle solid, with no shine. The sample is most likely a —
Nonmetal
200
Explain how to find volume using the displacement method.
Fill a graduated cylinder with water a certain amount of water, add the object, record the new volume. Subtract where it started from where it ended.
Subtract the first water level from the new water level. This gives you the object's volume
200
The capability of a substance to be stretched into thin wires without breaking is known as — ?
Ductility
200
Object B
It has more "stuff" (greater amount of mass per given volume)
200
Joaquin is examining an object in science class. It is solid, does not conduct, malleable but not ductile, and is a shiny silver color. The object is most likely a ____?
Metalloid
300
The capability of a substance to be molded and shaped, or hammered into sheets without breaking is known as — ?
Malleability
300
What in the picture is less dense than water?
the bubbles
300
Brandon finds an element that is light blue, breaks easily in his hand, and does not reflect light. How should Brandon classify the element?
Nonmetal
300
Hunter fills a graduated cylinder with 12 mL of water, then drops a marble into the graduated cylinder. If the meniscus on the cylinder is now at 15 mL, what is the volume of the marble?
Starting - Ending = Volume
= 15 mL - 12 mL
= 3 mL
300
Laila finds a solid, reflective object.
After some tests, she determines that the object cannot be drawn into a wire and is not a very good conductor of electricity.
The object that Laila found is most likely a —?
Metalloid
400
A substance that is solid, has a shiny orange color, conducts electricity well, and melts when heated could MOST likely be classified as a — ?
Metal
400
What is the mass of a piece of metal that has a volume of 2 cm3 and a density of 5 g/cm3?
Mass = Density x Volume
= 5 g/cm3 x 2 cm3
= 10 g
400
What is a property?
A characteristic of a substance that can be observed.
400
Alexa fills a graduated cylinder with 12.0mL of water. She finds the mass of a marble to be 1.15g, then drops the marble into the graduated cylinder. If the meniscus on the cylinder is now at 15.4mL, what is the volume of the marble?
Starting - Ending = Volume
= 15.4mL - 12.0mL = 3.4mL
400
When metals, nonmetals, and metalloids are compared according to luster, which is the best description of the appearance of metalloids?
Either shiny or dull.
500
List 3 properties of nonmetals.
1. Dull
2. Brittle
3. Not malleable
4. Not ductile
5. Poor electrical conductors (insulators)
500
Determine the density in g/cm3 of a mineral that has a volume of 3 cm3 and a mass of 24 g.
Density = Mass/Volume
= 24g / 3cm3
= 8 g/cm3
500
Camila was researching the element silver, for her project about atoms. Silver is an element that is shiny, conducts electricity and is also malleable. What type of element is silver?
Metal
500
Rebecca finds that the mass of 5mL of an unknown liquid is 15 g What is the density of this substance?
Density = Mass/Volume
= 15 g / 5mL
= 3 g/mL
500
A- Metals are good conductors of heat and electricity.
B- Nonmetals are good insulators of heat and electricity.
A- Metals are good conductors of heat and electricity.