Module 1: Properties of Matter Flashcards
Module 1 Chapter 2 Revision Points
Which scientist proposed the first ‘Atomic Theory of Matter’?
John Dalton
What is a pure substance?
A pure substance is a substance which is made up of only one element or compound.
What is a mixture?
A mixture is multiple elements or compounds together.
What is a homogeneous mixture?
A homogeneous mixture is a mixture which is consistent or uniform in composition.
What is a heterogeneous mixture?
A mixture which is not consistent or uniform in composition.
What is a solution called when water is the solvent?
Aqueous Solution
What is the distinguishing factor between Suspensions and Colloids?
Suspensions will settle over time, whilst colloids will not.
How can percent composition be calculated?
(Mass of Component) / (Mass of Mixture)
Where are metals located on the periodic table?
The first two columns/groups.
Where are transition metals located on the periodic table?
The middle section where the top rows cut off.
Where are non-metals on the periodic table?
The right hand side.
What is a physical property?
A property that can be observed or measured.
What is a chemical property?
The properties relating to how easily an element undergoes chemical change.
What are the columns known as on the periodic table?
Groups
What are the rows known as on the periodic table?
Periods
