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Not all of this material is original; so my thanks to the originators
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Not all of this material is original; so my thanks to the originators
Absolutely Brilliant! Informative, clear and funny! Keep them coming, dear sjc22, I would be "dead" without you today!
Beautiful, detailed and very professional. Like a grown up boardworks. slide 22 of the second ppt ask why the halogens are missing but they are present. Do you mean Noble gases or am I missing something.
Great! Very useful informative and not too 'wordy'. Will certainly use in my lessons