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C1- C3
Particles(C1),Elements,Compounds, Mixtures(C2), Chemical Reactions(C3)
Term | Definition |
---|---|
What is the Mass of a Proton, and Charge? | 1 & +1 |
What is the Mass of a Neutron, and Charge? | 1 & 0 |
What is the Mass of a Electron, and Charge? | 0.0005 & -1 |
How do you work out Mass Number? | Total number of Protons + Neutrons |
What is the Atomic Number? | Number of Protons |
Negative Ions | Form when atoms gain electrons so there's more electrons than neutrons |
Positive Ions | Form when atoms lose electrons so there's more neutrons |
Isotopes | Different forms of the same element, have same no. of protons but different no. of neutrons |
Dimitri Mendeleev | Made the first proper Periodic Table |
Electron Shells rules | 2,8,8 |
Simple Ions... | Form when Atoms lose or gain electrons |
Ions with opposite Charges Form.... | Ionic Bonds |
Ionic Compounds | Have a regular Lattice structure |
Covalent Bonds | Sharing Electrons |
Simple Molecular.... | Substances have low melting and boiling points |
Giant Covalent structures... | Contain many Covalent Bonds |
Plastics are... | Long-Chain Molecules called Polymers |
Forces between molecules... | Determine the properties of Polymers |
Properties of Materials depend on... | Structure and Bonding |
Metals have... | Crystal structure |
Most metals have.... | High melting & Boiling Point and High Density |
Metals are.... | Strong, but also Bendy & Malleable |
Metals react with.. | Oxygen to form Metal Oxides |
Metals can be mixed with other | Elements to form Alloys |
Metals are all.... | Good conductors of heat and electricity |
Structure and Bonding affect.. | Melting & Boiling points |
Pure Substances | Contain 1 thing |
Test for Purity | Using the Melting and Boiling Points |
Impure Substances have.... | Low melting points |
Impure substances also have.... | High Boiling points |
Distillation | Used to separate out Solutions |
Fractional Distillation | Used to separate a mixture of liquids |
Filtration | Separate Insoluble Solid from a Liquid |
Crystallisation | Separate a Soluble Solid from a Liquid |
Chromatography | Separate and Identify substances in a mixture |
What is the Mobile phase of Chromatography? | Molecules can move e.g liquid, gas |
What is the Stationary phase of Chromatography? | Molecules can't move e.g solid |
Half Equations show.... | The movement of Electrons |
Moles (Formula) | Mass in g Number of Moles = Mr |
Molecular & Displayed formulas show.. | Number of Atoms |
Empirical Formula | Simplest Ratio of Atoms |