Periodic Table Flashcards
What is an element?
An element is an atom that contains only one type of atom.
Is bromine more or less reactive then fluorine?
No, bromine is less reactive then fluorine.
Which group of the periodic table contains only extremely unreactive elements?
Group 0 elements are all extremely nonreactive. They almost never take part in any chemical reactions. These include Helium, Neon, Argon, Krypton, Xenon and Radon.
What is the difference between a compound and a mixture?
The difference between a compound and a mixture is that a mixture can be separated easily using physical methods, whereas compounds need a chemical reaction to separate them into their elements
What is the name of a compound made up of iron, sulfur and oxygen?
Iron + Sulfur + Oxygen - Iron Sulfate
When 2 different elements are combined, what is the ending?
The ending is usually ‘ something- ide’
When 3 different elements are combined, what is the ending?
The ending is usually ‘ something- ate’
Copper is a pinky- coloured metal.
Compounds of copper can form coloured crystals.
When copper is heated in oxygen, layers of a black substance form on the metal. Suggest what the black substance that forms during the reaction?
Copper Oxide
Suggest what substance is formed when copper is reacted with carbon + oxygen?
Copper Carbonate
A bottle should be light flexible and a unique shape.
a) suggest a material the bottle could be made of
b) give a reason why a metal is not a good idea for one
a) a polymer e.g. PVC
b) metals are heavy and not usually flexable.
suggest why ceramics are a good choice of material for the cups.
Ceramics are good insulators for heat
what other ways are ceramics used?
car breaks,spark plugs
What is meant by a composite material?
a composite material is a material made from two or more materials stuck together.
Why is fibreglass good for making surf boards/
It is very strong and has a low density so it is buoyant.
