States of Matter
This Sate of matter has a define shape and a define volume
What is a solid
Density describes how much ______ is packed into a certain amount of space.
What is Mass
Most elements on the periodic table are classified as this type of element.
What is a metal?
Elements that generally do not have the properties of metals are called these.
Elements that have some properties of metals and some properties of nonmetals are called these.
What is Metalloids?
This state of matter has a define volume but no define shape
What is a liquid
What two measurements are needed to calculate density?
What is Mass and Volume
This property means a metal can be hammered or rolled into thin sheets.
What is malleability?
Most nonmetals are poor ______ of heat and electricity but are good ______
What is Conductors- Insulators
Metalloids are found along this general feature of the periodic table.
This state of matter has no define shape and no define volume
What is Gas
An object has a mass of 20 grams and a volume of 5 milliliters. What is its density?
What is 4 g/mL
Metals are usually good at allowing heat and electricity to move through them. They are good ______.
What is Conductors
Which nonmetal is a gas that humans need to breathe?
What is Oxygen
This metalloid is commonly used to make computer chips and other electronic devices.
What is silicon?
This is the term for the energy of motion that atoms and molecules possess, which is lowest in solids and highest in gases.
What is kinetic energy?
Object A has a mass of 50 g and a volume of 10 mL. Object B has a mass of 30 g and a volume of 10 mL. Which object has the greater density?
What is Object A
This property describes how shiny or reflective the surface of a metal is.
What is Luster?
Unlike most metals, solid nonmetals are often described as being ______ and can break easily.
What is Brittle?
A material that conducts electricity better than a nonmetal but not as well as most metals is called a ______.
What is a semiconductor?
When thermal energy (heat) is added to a substance, the kinetic energy of its particles does this, allowing it to change state.
What is increase (or speed up)?
A rock has a mass of 60 grams and a volume of 20 milliliters. Calculate its density.
What is 3 g/mL?
Name two physical properties commonly associated with metals.
What are conductivity, luster, malleability, ductility, or being solid at room temperature?
Name one nonmetal that is a gas at room temperature
What are oxygen, nitrogen, hydrogen, chlorine, or another appropriate example?
Why are metalloids useful in electronics?
Because they have properties that allow them to control or conduct electricity in useful ways.