Periodic table of elements
I'm sure you know this is a periodic schedule. These are the elements under the earth. These elements work in our industry. It consists of 4 groups in the periodic table, namely s, p, d snd f. I have provided some links to help you on this topic.😊 Just click the links below👇👇 http://spmchemistry.blog.onlinetuition.com.my/2011/12/periodic-table.html http://spmchemistry.blog.onlinetuition.com.my/spm-chemistry-form-4-chapter-4-kssm-periodic-table-of-elements
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