C1 Fundamental Ideas

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  • Created by: KAustria
  • Created on: 08-06-14 14:21
What is the basic structure of an atom?
2,8,8
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What is the periodic table?
A list of elements
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What is an element made out of?
One type of atom
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What are the two particles in the centre of the atom?
Neutron and Proton
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Why are atoms neutral?
This is because the number of protons equals the number of electrons and their charges are equal and opposite
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What is the atomic number?
The number of protons (and electrons)
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How are elements arranged on the periodic table?
In order of their atomic numbers.
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What is the mass number?
Proton and neutron
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What are electrons in, in an atom?
Energy levels.
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How do Group 1 react with water and oxygen?
They react quickly
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Describe the nature of the noble gases?
They are unreactive because they have a stable outer shell.
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Why are nitrogen and phosphorus both in Group 5 of the periodic table?
Because they have 5 electrons on their outer energy level
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What are formed when a metal and non- metal react?
An ion
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How does an ionic compound stay as it is?
The oppositely charged ions attract each other strongly - electrostatic forces.
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What are formed when non-metals combine?
Covalent bonds?
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What is the differences of a covalent bond and an ionic bond?
1. Only occur between non-metals 2. Sharing of electrons 3. Not charged
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What does the chemical formula of a molecule tell us?
The number of atoms in the molecule
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What happens to atoms during a reaction?
Atoms re arrange themselves to form new substances. They are neither created nor destroyed in a chemical reaction. mass=mass
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How are symbol equations balanced?
Changing the large numbers in front of the formulae of the reactants and products.
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Other cards in this set

Card 2

Front

What is the periodic table?

Back

A list of elements

Card 3

Front

What is an element made out of?

Back

Preview of the front of card 3

Card 4

Front

What are the two particles in the centre of the atom?

Back

Preview of the front of card 4

Card 5

Front

Why are atoms neutral?

Back

Preview of the front of card 5
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