Easy Way To Remember The Periodic Table First 20

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I was staring at my mug. My usual coffee break routine… At that time, I was figuring out how to memorize my PEG System table, along with the major System. Then i thought : “How much time do you spend in front of your plain white coffee mug every day http://messiahqqrpp.blogpostie.com/3937376/first-20-periodic-elements


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