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5.1 CLASSIFICATION OF ELEMENTS 133 Figure 5.1 Mendeleev's Classification of the Elements (1871) The formula for the Group I II III IV V VI VII VIII Formula oxide of an element is indi- of Oxide R20 RO R2O, RO, R;O; RO, R20, RO, cated by the notation R20, RO, and so on. For example, GroupI oxides include Li,O, Naz0, and K2O;and Group Il oxides include Beo, Mgo, and Cao. In Groups II and IV, Mendeleev indicated the existence of three undiscovered elements, which he named ekaboron, ekaaluminum, and ekasilicon. H Li Be B N F Na Mg Al Si CI K Ca eka- Ti V Cr Mn Fe, Co Cu Zn eka- eka- As Se Br & Ni Rb Sr Y Zr Nb Мо Ru, Rh Ag Cd In Sn Sb Te I & Pd Ba Di Ce Er La Та Os, Ir Au Hg TI Pb Bi & Pt Th U

5.1 CLASSIFICATION OF ELEMENTS 133 Figure 5.1 Mendeleev's Classification of the Elements (1871) The formula for the Group I II III IV V VI VII VIII Formula oxide of an element is indi- of Oxide R20 RO R2O, RO, R;O; RO, R20, RO, cated by the notation R20, RO, and so on. For example, GroupI oxides include Li,O, Naz0, and K2O;and Group Il oxides include Beo, Mgo, and Cao. In Groups II and IV, Mendeleev indicated the existence of three undiscovered elements, which he named ekaboron, ekaaluminum, and ekasilicon. H Li Be B N F Na Mg Al Si CI K Ca eka- Ti V Cr Mn Fe, Co Cu Zn eka- eka- As Se Br & Ni Rb Sr Y Zr Nb Мо Ru, Rh Ag Cd In Sn Sb Te I & Pd Ba Di Ce Er La Та Os, Ir Au Hg TI Pb Bi & Pt Th U

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Examine Figure 5.1 and determine the name of the element that Mendeleev predicted before its discovery and called ekaboron.

5.1 CLASSIFICATION OF ELEMENTS 133 Figure 5.1 Mendeleev's Classification of the Elements (1871) The formula for the Group I II III IV V VI VII VIII Formula oxide of an element is indi- of Oxide R20 RO R2O, RO, R;O; RO, R20, RO, cated by the notation R20, RO, and so on. For example, GroupI oxides include Li,O, Naz0, and K2O;and Group Il oxides include Beo, Mgo, and Cao. In Groups II and IV, Mendeleev indicated the existence of three undiscovered elements, which he named ekaboron, ekaaluminum, and ekasilicon. H Li Be B N F Na Mg Al Si CI K Ca eka- Ti V Cr Mn Fe, Co Cu Zn eka- eka- As Se Br & Ni Rb Sr Y Zr Nb Мо Ru, Rh Ag Cd In Sn Sb Te I & Pd Ba Di Ce Er La Та Os, Ir Au Hg TI Pb Bi & Pt Th U
Transcribed Image Text:5.1 CLASSIFICATION OF ELEMENTS 133 Figure 5.1 Mendeleev's Classification of the Elements (1871) The formula for the Group I II III IV V VI VII VIII Formula oxide of an element is indi- of Oxide R20 RO R2O, RO, R;O; RO, R20, RO, cated by the notation R20, RO, and so on. For example, GroupI oxides include Li,O, Naz0, and K2O;and Group Il oxides include Beo, Mgo, and Cao. In Groups II and IV, Mendeleev indicated the existence of three undiscovered elements, which he named ekaboron, ekaaluminum, and ekasilicon. H Li Be B N F Na Mg Al Si CI K Ca eka- Ti V Cr Mn Fe, Co Cu Zn eka- eka- As Se Br & Ni Rb Sr Y Zr Nb Мо Ru, Rh Ag Cd In Sn Sb Te I & Pd Ba Di Ce Er La Та Os, Ir Au Hg TI Pb Bi & Pt Th U
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