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...Figure shows an outline of the modern periodic table j l m q and r represent elements in a which element has four electrons its outer shell tick one box b two are same period c reacts with potassium to form ionic compound d forms ions different charges home school tutors page e three electron shells f s scientists were trying organise published by john newlands arranged order their atomic weights h li be n o na mg al si p cl k ca cr ti mn fe co ni cu zn y as se br rb sr ce la zr di mo ro ru pd ag cd u sn sb te dmitri mendeleev became accepted other whereas was not evaluate tables you should include comparison reasons why more acceptable use your own knowledge total marks this question is about correct answers from complete sentences atoms proton numbers show following discovery protons position six i these lowest boiling point ii sentence rubidium group iii most reactive lithium sodium...