CU1 Definitions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| atomic number | number of protons (or electrons) in an atom
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| mass number | protons + neutrons in nucleus of atom
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| ionic bond | electrostatic force between positively and negatively charged ions
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| covalent bond | between two atoms that share one or more pairs of electrons
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| smelting | heating a metal ore to extract its metal
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| phytomining | process of extraction of metals from ores using plants
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| bioleaching | process of extraction of metals from ores using microorganisms
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| transition metal | found in central block of periodic table, has typical metallic properties
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| fractional distillation | a way to separated liquids from a mixture of liquids by boiling them off at different temps then condensing and collecting
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| fractions | hydrocarbons with similar boiling points from crude oil.
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| cracking | used to break down large hydrocarbons into smaller, more useful ones. Hydrocarbon vapour is passed over hot catalyst or mixed with steam and heated to high temp.
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| double bond | covalent bond made by the sharing of two pairs of electrons
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| polymer | made up of repeating units of monomers
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| monomer | small reactive molecules that react together to form a larger molecule (polymer)
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| polymerisation | reactions of using monomers to make a polymer
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| hydrophilic | water loving
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| hydrophobic | water hating
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Created by:
blameruth
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