The periodic table 2.0 / 5 based on 1 rating ? ChemistryThe Periodic TableGCSEAQA Created by: CharCreated on: 15-05-13 17:07 Who proposed the law of octaves? Newlands 1 of 9 How many elements were there? 62 2 of 9 Scientists did not accept his ideas because... Properties did not match very well within groups 3 of 9 Who produced a better table (in 1869)? Mendeleev 4 of 9 Why was it better? He left gaps for undiscovered elements 5 of 9 What determines the element's place in periodic table? Atomic number 6 of 9 How can we explain trends of reactivity in periodic table? Distance between outermost electrons and nucleus 7 of 9 Another way? Number of occupied inner shells (energy levels) 8 of 9 As atoms get larger... The outer electrons are less strongly attracted by the nucleus 9 of 9
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