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20 Cards in this Set
- Front
- Back
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Give the relitve mass of an electron |
1/2000 of a nucelon |
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Define atomic number |
The amount of protons in an atom which is equal to the amount of electrons |
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Define isotopes |
Atoms of the same element with different numbers of neutrons and different masses |
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What does a mass spectrometer do |
The mass spectrometer produces +1 ions and the mass spectrum produces records the mass of the +1 ions on the x axis as the mass to charge ratio |
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What is the term relitive molecular mass used for?? |
The mass of covelnt molecules |
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What is the term relitive formula mass used for? |
The mass of ionic compounds |
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Elements are... |
A substance containing only one type of atom |
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A formula of a metal element is... |
The symbol |
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A simple molecule is |
A few non-metal atoms joined by covalent bonds |
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Molecular formula is... |
The number of atoms of each element within a simple molecule |
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Compound are |
Two or more elements chemically bonded together |
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Compounds between non-metal elements |
usually contain atoms |
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Ions are... |
A species with a charge |
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Compounds between non-metal and metal Elements |
usually contain ions |
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Ions are only found in compound |
With ions of the opposite charge |
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Molecular ions are... |
Charged species that contain other ions of the opposite charge |
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Anions and cations are |
Negative and positive ions |
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Which is the only non metal element that is liquid at room temperature |
Bromine |
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What happens if an ionic compound dissolves in water? |
The aqueous solution will contain separate positive and negative ions |
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What happens to Acids when they are dissolved in water |
They form aqueous ionic solutions as the dissociate (break up) |
