4509695
Description
Flashcards by Cecily Russell, updated more than 1 year ago
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Created by Cecily Russell
almost 9 years ago
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| Question | Answer |
| 1. What are the charges of a proton, neutron and electron? 2. What does the group number in the periodic table tell you? 3. What was Döbereiners Triad’s theory? 4. What did Mendeleev do? 5. What makes each atom unique | 1. Proton: 1, Neutron: 0, Electron: -1 2. No. of electrons in outer shell 3. Relative atomis mass of middle element = mean of two either side of it 4. Put elements in order of R.A.M and left gaps for undiscovered ones 6. It’s number of protons |
| 1. What does the atomic mass represent? 2. Give the equation for an alkali metal + water 3. Why does reactivity decrease down Group 1 elements? 4. What do reactions with Chlorine give? 5. Reactivity of Halogens decreases or increases down the group? | 1. Number of protons 2. alkali metal + water --> metal hydroxide + hydrogen 3. Atoms get bigger so electrostatic attraction between protons and electrons is less. 4. Chloride Salts 5. Decreases |
| 1. What are the colours of F, Cl, Br and I? 2. Why do atoms react? 3. Do metals gain or loose electrons resulting in a positive charge? 4. What is an ion? 5. What do metals and non metals form and what is the structure? 6. What is the charge of Na? | 1. F: Yellow, Cl: green, Br: red, I: purple 2. To gain a full outer shell 3. Loose 4. A charged particle 5. Ionic Compounds in a giant lattice 6. 1+ |
| 1. Is the anode positive or negative? 2. What ions are attracted to the cathode? 3. What colour flame does Na have? 4. What colour flame does Lithium have? 5. What colour flame does K have? 6. Are anions positive or negative? | 1. Positive 2. Positive cations 3. Orange 4.Purple 5. Lilac 6. Negative |
| 1. In what mineral are silicon and oxygen likely to be found? 2. Describe Covalent Bonding. 3. What is the most abundant metal in Earth’s crust and what’s it’s ore? 4. Ionic bonding is between...? 5. Define Metallic Bond | 1. Silicon Dioxide 2. Non-metal & Non-metal, electrostatic attraction with protons and electrons 3. Aluminium, Bauxite. 4. Metals and Non Metals 5. Electrostatic force of attraction between positive ions and electrons |
| 1. Do ionic bonds transfer or share electrons? 2. Why do covalent compounds not conduct electricity? 3. Do covalent bonds transfer or share electrons? 4. How many bonds do carbon atoms form in a diamond? | 1. Transfer 2. No charged particles that could carry the current 3. Share 4. 4 |
| 1. How many bonds do carbon atoms form in Graphite? 2. Why is graphite soft and slippery? 3. What do alkali metals and halogens form? 4. A metal and acid makes..? 5. Acid and hydroxide? 6. Acid and carbonate? 7. What is calculation for percentage mass? | 1. 3 2. The layers are free to slide over each other 3. Metal halides 4. Salt and hydrogen 5. Salt and water 6. Salt, water and carbon dioxide 7. Mass of element A divided by relative formula mass, times 100% |
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