C1 1.1 and C1 1.2 Flash Cards


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Why do atoms have a neutral charge?
Because the positive charge on the protons and the negative charge on the electrons cancel each other out
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Name the two sub-atomic particles in the nucleus of an atom
Protons and Neutrons
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Why does aluminium react with iron oxide?
Because aluminium is higher up in the reactivity series
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Why do all atoms in the same group have similar chemical properties?
Because they all have the same number of electrons in their outer shell.
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Why are all group 0 atoms unreactive?
Because they all have a full outer shell
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How many electrons can you fit on each shell around the nucleus of an atom?
2 electrons on the first (inner shell), then 8 on the second and third shell
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How do you work out the mass of an atom?
Mass number= Number of protons + Number of neutrons
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What types of substances are made up of atoms?
All substances are made up of atoms
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How many types of atoms do elements contain?
Elements contain only one type of atom
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What does an atom consist of?
An atom has a nucleus of protons and neutrons, surrounded by electrons
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How do you work out the number of neutrons in an atom?
Number of Neutrons= Mass number - atomic number
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How do you find the atomic number?
Atomic number= Number of protons/electrons (as they are equal)
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How are elements arranged in the periodic table?
In the order of their atomic number
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What is a compound?
A mixture of different types of atoms joined together
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When elements are arranged in columns in the periodic table, what are these columns called?
The columns in the periodic table are known as the 'groups'
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What type of electrical charge do Neutrons have?
Neutrons have no electrical charge. They are neutral
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What holds the atoms tightly together in compounds?
Chemical bonds
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What is an example of a compound that has just 2 different types of atoms?
Water, H20
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What are the relative charges on the sub-atomic particles of an atom?
Electron- Negative, Proton- Positive, Neutron- Neutral
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How do you find the number of protons or electrons?
They will always give you one or the other, and Protons= Electrons
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Other cards in this set

Card 2

Front

Name the two sub-atomic particles in the nucleus of an atom

Back

Protons and Neutrons

Card 3

Front

Why does aluminium react with iron oxide?

Back

Preview of the front of card 3

Card 4

Front

Why do all atoms in the same group have similar chemical properties?

Back

Preview of the front of card 4

Card 5

Front

Why are all group 0 atoms unreactive?

Back

Preview of the front of card 5
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