Elements Mixtures And Compounds Flashcards
What is an element
A substance that consists of only one type of atom and cannot be broken down into anything simpler using chemical meathods
What is an atom
Simplest paricle of an element that can exist on its own in stable environment
What is a molecule
A particle that has two or more atoms chemically bonded together
What are some examples of elements
Hydrogen
Lithium
Sodium
Lead
Barium
Magnesium
Calcium
What does NA stand for
Sodium
What does k stand for
Potassium
What does FE stand for
Iron
What does AG stand for
Silver
What does PB stand for
Lead
What is a group
A verticals column in the periodic table
What is a period
A horizontal row in the periodic table
What are some properties of metals
Hard
Conducts electricity
Conducts heat
High density
Malleable
High melting point
Where are the metals on the periodic table
Any element on the left
What does malleable mean
Can be hammered into shape
What does ductile mean
Can be drawn into wires
What are some properties of non metals
Brittle
Doesn’t conduct electricity
Dull
Gas,liquid or solid at room temperature
Where are non metals on the periodic table
Any element on the right hand side
What is a compound
A material that has two or more elements chemically joined together
What is a mixture
A mixture is made up of 2 or more substances mixed together and they are easy to separate because there not chemically combined
What is the experiment for iron sulfide
Iron + sulphur -> iron sulfide = GLOWS
What is the experiment for magnesim oxide
Magnesium + oxygen-> magnesium oxide = Bright White Light
