Development of the periodic table Development of the periodic table quiz CHAPTERS C3 1.1 - 1.5 4.0 / 5 based on 8 ratings ? ChemistryThe Periodic TableGCSEAQA Created by: GeorginaCreated on: 21-04-11 17:57 How did scientists in the 19th century try to classify elements? in order of atomic weights and by chemical properties 1 of 9 Who produced the periodic table with gaps for elements that has not been discovered? Mendeleeve 2 of 9 How are electronic structures of elements in a group different? They have different number of shells 3 of 9 In the modern periodic table, how are the electronic structures of elements in a group the same? They have the same number of electrons in the outer shell. 4 of 9 How does the reactivity of the elements change going down group 1 It increases 5 of 9 Why does the reactivity in Group 1 change as described in question 5? The electron in the highest energy level shell is further from the nucleus 6 of 9 What is the trend in reactivity in the halogen group? Decreases down the group 7 of 9 Why are transition elements useful as building materials? They are Strong metals 8 of 9 Why are there ten transition elements in each period? A inner shell can hold ten more electrons after group 2 9 of 9
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