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atoms, elements and compounds (selina) (elements, compounds and mixture…
atoms, elements and compounds (selina)
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elements, compounds and mixture
differences between elements, mixtures and compounds, and between metals and non-metals
elements are pure substance, mixtures are putting two or more elements in one container, compounds are two or more elements combining together.
I can understand the difference between metals and non-metals there are no need for writing it in here.
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bonding
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macromolecules
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there are several different forms of carbon, including diamond and graphite
the structures of diamond and graphite to their uses, e.g. graphite as a lubricant and a conductor and diamond in cutting tools
ions and ionic bonds
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formation of ionic bonds between metallic and non-metallic elements to include the strong attraction between ions because of their opposite electrical charges
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lattice structure of ionic compounds as a regular arrangement of alternating positive and negative ions, exempli ed by the sodium chloride structure