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13 Cards in this Set
- Front
- Back
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Atoms |
Atoms are made up of; Electrons Protons Neutrons |
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Electrons |
Move around the nucleus. Have a negative charge The size of there orbit determines how big the atom is. Virtually no mass. Relative mass 1/2000 |
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Protons |
Inside the nucleus of an atom. Have a positive charge. The charge on protons is the same on electrons but opposite. Relative mass 1 |
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Neutrons |
No charge Inside nucleus. Relative mass 1 |
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Number of Protons = |
Number of electrons |
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Isotopes |
Different atomic forms of the same element, which have the same number of Protons but different number of neutrons. |
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Ionic Bonding |
Atoms of different elements can form chemical bonds and join together to form new compounds. They transfer electrons to form ions. |
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Atomic number |
Number of Protons (or electrons) |
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Mass number |
Protons and neutrons together. |
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Displacement reaction |
If a more reactive halogen reacts with a solution containing halide ions it will be pushed out the less reactive halogen. |
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Chlorine |
Dense green gas |
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Bromine |
Orange liquid |
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Iodine |
Dark grey solid |
