Elements, compounds and mixtures Flashcards
Where do some of the chemical symbols come from? (The “Pb” in lead)
The acronyms for the chemicals come from the Latin language
What are the properties of metals, non metals and metalloids?
State at room temperature, lustre, conductable, malleability, ductility, colour.
What is the formula of water?
The formula for water is H2O
Hydrogen and 2 Oxygen
What is the combination of Iron and Oxygen called
Iron Oxide (Rust)
What element and symbol did Mr McCarthy burn to set off the fire alarm?
Magnesium (Mg)
What are the three MAIN states of matter (there are four, but the fourth isn’t important)
Solid, Liquid and Gas
What is the chemical symbols for Sodium Chloride (Salt)
NaCl
What is a metalloid?
It has the properties of non metals and metals
What is a mixture?
A mixture is when two different compounds are mixed together.
What is a compound?
It is 2 or more elements chemically joined together
What is an element?
An element is a pure substance (found on the periodic table), a collection of atoms or molecules of the same kind.
What is the colour of phosphorus?
The colour of phosphorus is red
What are some physical properties?
Some are:
whether it conducts electricity
density
strength
What is viscosity?
Viscosity is the thickness or ‘gooiness’ of a liquid
What is conductivity?
Conductivity is how easily something moves through a substance
What element are most life forms made of?
Most life forms on Earth are made from Carbon
What is an atom?
An atom is a single particle with no charge.
What is a molecule?
Two or more elements chemically joined together.
What is Na?
Sodium
What is H?
Hydrogen
What is He?
Helium
What is Au?
Gold
What is Mg?
Magnesium
What is O?
Oxygen
