Chemistry

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  • Created by: erinc3311
  • Created on: 07-03-14 13:12
What is an atom?
An atom is the smallest part of matter.
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What is the periodic table?
The periodic table is an arrangement of elements.
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What is an element?
An element only has one type of atom.
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Are elements natural or man-made?
Both.
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What is a period on the table?
A period is a row of elements running along the table.
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What is a group on the table?
A group is a column of elements.
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What does group 1 contain?
Alkali Metals.
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What does group 7 contain?
Halogens.
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What does group 8 contain?
Noble Gasses.
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What are between groups 2 and 3?
Transition Metals.
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What are elements given?
A symbol.
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Where are metals on the table?
On the left-hand side of the zig zag line.
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Where are non metals on the table?
On the right hand side of the zig zag line.
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Describe metals.
They are shiny and conductors of electricity.
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Describe non-metals.
They are dull and are not conductors of electricity except graphite.
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Compounds are formed when...
Elements react together.
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Compounds have different ………… from the elements they are made from.
properties.
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How are the elements in compounds bonded?
They are chemically bonded together and not easily separated.
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What dose "-ide" mean in the name of compounds.
That it contains the two elements indicated.
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What does, "-ite" mean at the end of the name of a compound?
It means that their is an additional element of oxygen in the compound.
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What does, "-ate" mean at the end of the name of a compound?
It means that their is an additional element of oxygen in the compound and more than in an "ite" compound.
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What is electrolysis?
Using electrical charge to break a compound into its elements.
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During physical change are new substances made?
no new substance is formed during physical change
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Are physical changes easy to reverse?
Yes.
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Changes of state are chemical or physical changes?
Physical.
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Identify changes of state.
sublimation, evaporation, condensation, melting, freezing.
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What is involved in a chemical reaction.
all chemical reactions involve the formation of one or more new substances.
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Are chemical changes easily reversed?
No.
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Describe ways which identify that a chemical reaction has taken place.
changes in appearance of substance, including colour change, gas evolved, precipitate formed.
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Chemical reactions can also be identified by...
energy changes.
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reactions that release energy to the surroundings so the products have less chemical energy than the reactants are called?
Exothermic.
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reactions that take in energy from the surroundings so the products have more chemical energy than the reactants are called...
Endothermic.
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What is a reactant?
a substance that takes part in, or undergoes change in a chemical reaction.
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Card 2

Front

What is the periodic table?

Back

The periodic table is an arrangement of elements.

Card 3

Front

What is an element?

Back

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Card 4

Front

Are elements natural or man-made?

Back

Preview of the front of card 4

Card 5

Front

What is a period on the table?

Back

Preview of the front of card 5
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