Periodic table – Group 1 The alkali metals have a silvery, shiny surface when they are first cut. However, this goes dull very quickly as the metals reacts with the oxygen in the air. e.g. sodium + oxygen sodium oxide 4Na(s) + O2(g) 2Na2O(s) Lithium, sodium and pota...
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University of Manchester - BSc Chemistry Qualified UK Science teacher £50/ hour Qualified Teacher SEND Graduate Book Tutor This topic is included inPaper 2for GCSE Edexcel Biology. Notes Definitions - Topic 6 Plant Structures and their Functions - Edexcel Biology GCSE ...