Elements, Compounds And Mixtures Flashcards
What is the definition of an element
An element is a substance that consists of only one type of atom and it cannot be broken down into anything simpler by chemical means
What does a period mean ( in the perodic table )
A horizontal row in the periodic table
What does a group mean ( in a periodic table)
A vertical coloumn in the periodic table
What does malleable mean?
It means it can be hammered into shape
What does ductile mean?
It can be drawn into wires
What is a compound?
A compound is a substance formed when two or more ( different ) elements are chemically combined
What is a mixture
A mixture is two or more substances mixed together which are usually easy to seperate
Give atleaset two properties of metals
Hard, conduct electricity and heat , high density , high lustre , malleable , high melting point.
Give atleast two properties of non metals
Brittle , does not conduct electricity , dull , gas , liquid or solid at room temperature
