423742
Description
Flashcards by nclegg1998, updated more than 1 year ago
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Created by nclegg1998
about 11 years ago
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| Question | Answer |
| what are the symbols for: calcium carbon sodium | Calcium = Ca Carbon = C Sodium = Na |
| how would you work out the atomic number of an atom given its atomic number? | put them into the rings 2,8,8 etc and count how many in each shell |
| describe the process of ionic bonding. | ionic bonding if when an atom loses or gain electrons in order to have a full outer shell |
| what is covalent bonding? | covalent bonding is when 2 atoms need to complete their outer shell so share electrons with another atom. |
| name 3 building materials made from limestone | concrete, cement, mortar |
| whats the definition of an ore | a quantity of an element stuck in rock in a substantial volume that can be extracted |
| what is electrolysis | the process using an anode and cathode, electrolyte and a current used to seperate |
| give three properties of metals | hard bendable good conductor of electricity/ heat |
| give 2 examples of alloys and say whats in them | bronze = copper + tin gold for jewelery = gold + zinc + copper + silver + palladium + nickel |
| what does crude oil contain | mostly alkanes. made up of chains of carbon atoms surrounded by hydrogen atoms. |
| whats the general formula for an alkane | CnH2n+2 |
| is a short chain hyrdocarbon more viscous than a long chain? | no the shorter the less viscous (gloopy) it is |
| what do mass and atomic number represent | atomic mass and electron number |
| what is a compound | a group of atoms |
| describe the process of ionic bonding | when an atom loses/gains electrons in order to get a full outer shell |
| what is covalent bonding | when atoms share electrons in order to get a full outer shell |
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