C4 The Periodic Table - Elements and Isotopes & The History of the Periodic Table 3.0 / 5 based on 1 rating ? ChemistryThe Periodic TableGCSEOCR Created by: Alison RussellCreated on: 11-01-13 10:02 Word for number of electrons in outer shell on the periodic table Group 1 of 18 Word corresponding to number of electron shells/energy levels Period 2 of 18 Different forms of the same element Isotopes 3 of 18 Isotopes have the same number of ______ Protons 4 of 18 Isotopes have a different number of ______ Neutrons 5 of 18 Common Isotope Carbon-12 6 of 18 Annother common Isotope (pairs with clue 6) Carbon-14 7 of 18 Who tried to organise elements into Triads? Dobereiner 8 of 18 How was the relative atomic mass of the middle element of each triad calculated? Average of other two 9 of 18 What was Newland's Law named as? Octaves 10 of 18 What year did Newland try to arrange elements? 1864 11 of 18 Newland's law was ignored because he had no ____ Gaps 12 of 18 Who was criticised the groups he ordered elements into contained elements that didn't have similar properties? Newland 13 of 18 Newland mixed up Metals and ______ in his ordering. Non-metals 14 of 18 How did Dimitri Medeleev order the elements? Atomic Mass 15 of 18 What was a key thing that Medeleev did in his ordering? Left ___ Gaps 16 of 18 He put elements with Similar Properties in _________ Vertical Groups 17 of 18 The gaps left by Mendeleev ____ the properties of so far undiscovered elements Predicted 18 of 18
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