Atomic Structure

  • Created by: clareh8
  • Created on: 29-09-18 13:37
What are the four separation techniques?
Filtration - Crystallisation - Distillation - Chromatography
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What does Filtration do?
Gets an insoluble solid from a liquid
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What does Crystallisation do?
Gets a soluble solid from a liquid by evaporating liquid off.
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What does Distillation do?
Gets a pure liquid from a mixture of liquids
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What does Chromatography do?
It separates mixtures of coloured compounds
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What are Electron Energy Levels?
These are where electrons are found. The shells can each hold a maximum electrons of 2,8,8,...
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What is the periodic table?
The periodic table is a list of all the elements in order or atomic number. The columns are called groups and the rows are called periods.
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What is conservation of mass.
In a chemical reaction the total mass of reactants = total mass of products
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Mass Number
Number of neutrons + protons (top + bottom)
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Atomic Number
Number of protons (bottom number)
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What is an isotope?
Same number of protons, different number of neutrons
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Ion
Atom where number of protons is not equal to electrons
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Plum pudding atom model
Early model - ball of positive charge with electrons in it.
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Other cards in this set

Card 2

Front

What does Filtration do?

Back

Gets an insoluble solid from a liquid

Card 3

Front

What does Crystallisation do?

Back

Preview of the front of card 3

Card 4

Front

What does Distillation do?

Back

Preview of the front of card 4

Card 5

Front

What does Chromatography do?

Back

Preview of the front of card 5
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