Classification of Matter
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What are the characteristics of an element?
An element is a pure substance made of one type of atom, they can also be found on the periodic table.
What are the characteristics of a compound?
Compounds are pure substances and are made up of one type of molecule. They can not be found on the periodic table and have 2 or more different atoms that are chemically bonded.
What are the characteristics of mixtures?
A mixture is not a pure substance and is physically combined. There are also no new substances and can be homogenous or heterogenous.
The smallest unit of a compound is…
The Molecule
The smallest unit of an element is…
The Atom
Elements, Compounds, and Mixtures are all alike because…
They are all made of matter.
Is an atom bigger than a molecule?
No, a molecule is bigger than an atom.
What is a mixture?
A mixture contains at least 2 physically combined compounds or elements. They can be Homogeneous or Heterogeneous.
What is a homogeneous mixture?
A mixture where the components are evenly distributed among each other so you can not see the individual parts.
What is a heterogeneous mixture?
A mixture in which the components are not evenly distributed among each other, you can see the individual parts
What are examples of a heterogeneous mixture?
Sand water, oil and water, sand and iron, granite, blood, chocolate chip cookies
What are examples of a homogeneous mixture?
Salt dissolved in water, sugar dissolved in water, apple juice, tea, alloys (steel and brass)
What is a pure substance?
A pure substance is any single type of material that are made of only one type of atom or only one type of molecule.
What are examples of an element?
Gold is an element made up of only gold atoms. Carbon is an element made up of only carbon atoms.
What are examples of a molecule?
Hydrogen - H2 Oxygen - O2
What are examples of a compound?
Table salt (NaCI), Nitrogen Gas (N2), Water (H2O), etc.
What is a compound?
A compound is a type of molecule that is made of two or more different kinds of elements chemically bonded in a specific ratio.