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28 Cards in this Set
- Front
- Back
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Precipitates |
If you mix solution of two double salts and the irons combine to form new salts. If this new salt is insoluble then it will appear precipitates. |
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Flame test - sodium (NA+) |
Flame colour - yellow |
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Flame test- potassium (K+) |
Flame colour- lilac |
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Ion flame test - calcium (CA2+) |
Flame colour- red |
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Flame test ion - COPPER(Cu2+) |
Flame colour - green/blue |
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What is a flame test? |
Some metal ions can be identified through a flame test. A damp splint place in the soils and then held under the fire. The colour it burns will help identify the ion. |
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What is a flame test? |
Some metal ions can be identified through a flame test. A damp splint place in the soils and then held under the fire. The colour it burns will help identify the ion. |
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Covalent bonds? |
Molecules consists of two or more atoms chemically joined together. The atoms are held together by a covalent bond.
A covalent bond is a lair of elections that is scared between to atoms. |
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What is a flame test? |
Some metal ions can be identified through a flame test. A damp splint place in the soils and then held under the fire. The colour it burns will help identify the ion. |
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Covalent bonds? |
Molecules consists of two or more atoms chemically joined together. The atoms are held together by a covalent bond.
A covalent bond is a lair of elections that is scared between to atoms. |
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Proton charge ? |
Relative mass-1 Relative charge -+1 |
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Neutron charge ? |
Relative mass-1 Relative charge - 0 |
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Neutron charge ? |
Relative mass-1 Relative charge - 0 |
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Election charge ? |
Relative mass-1/1840 Relative charge - -1 |
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Atomic number? |
The atomic number of an element is there number of protons in the nucleus? |
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Atomic number? |
The atomic number of an element is there number of protons in the nucleus? |
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Mass number? |
The mass number is the total number of protons and neutrons in the nucleus |
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Isotopes ? |
Isotopes are the atoms of the same elements with different numbers of neutrons. |
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Atoms? |
Proton and neutrons in the central nucleus with electrons in shells. |
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Elements arrangement ? |
Elements are arranged in order of their atom numbers |
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Elements arrangement ? |
Elements are arranged in order of their atom numbers |
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Periodic table rows? |
The horizontal rows are called periods. |
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Metal and no metals table ? |
Metals are on the left hand side and in the centre and no-metals as on the right hand side |
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Medeleev |
Mendeleev put the elements in order of the relative mass. He checked the properties of elements of their compounds He swapped the places of some elements He left gaps where he thought there were elements and predicted their properties. When these elements were discovered Mendeleev predictions fitted the properties very well |
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Electronic configuration |
The elections fill the wheels that are closest to the nucleus first First shell-can hold 2 electrons 2nd shell- 8 electrons 3rd shell- 8 electrons |
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Electrons and groups |
The group number are the same number of electrons on the other sell expect group 0 who have a fuller outer shell |
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Number of protons and electrons of a atom? |
The number of protons and electrons in an atom is the same |
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Ion charge |
It has no overall charge because the positive charges on the protons are balanced by the negative charges on the electrons |
