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Download Periodic Table Notes Odysseyware Vocabulary the average relative
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Periodic Table Notes Odysseyware Vocabulary _______________________ the average relative mass of each element _______________________ a vertical column on the periodic table; also called a group _______________________ a vertical column on the periodic table; also called a family _______________________ one of two or more atoms of the same element with different masses due to different numbers of neutrons ______________________ a horizontal row on the periodic table ______________________ something that repeats itself on a regular, predictable basis The History of the Periodic Table (Video) In the late ______________the sixty-three known elements had been classified according to their properties, but they hadn’t been organized. Then, he (Mendeleev) began to lay the cards out according to increasing ________________ ____________________. The Modern Periodic Table Notice that the elements are arranged in horizontal ____________ and vertical ________________. All the elements of the same ____________ have similar _______________ and ______________ properties. The periods all show a similar _______________, with metallic elements on the left transitioning to nonmetallic elements on the right. This information is different from that used by Mendeleev because it reflects ____________________ about the atom which have been made since his time. Using the Periodic Table Atomic Number Electron Distribution Atomic weight You can obtain the atomic mass by _________________ the atomic weight of that element to the nearest whole number. To determine the number of neutrons: atomic mass - atomic number = number of neutrons
