Explanation The elements are arranged in a specific way in Periodic table. The first and foremost arrangement in periodic table is done by considering only the atomic number. This is because atomic number is the total number of protons that is present in nucleus of the atom. This is unique for each and every element. Hence the arrangement of elements in the periodic table is done by the atomic number. By knowing the atomic number of an element the position of an element in periodic table can be determined. From the position of the unknown element, the properties of the same can be guessed accurately even before discovery. Periodic table includes all the known elements. The elements are arranged in a way that they reveal regularities in occurrence of elements with similar properties. The Group VIIA elements are known as halogens. The halogen atom has a total of seven valence electrons in its outermost shell...

16th Edition

ISBN: 9780077862619

Author: KRAUSKOPF, Konrad B. (konrad Bates), Beiser, Arthur

Publisher: Mcgraw-hill Education,

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The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways:

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Chapter 10, Problem 23MC

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Chapter 10, Problem 22MC

Chapter 10, Problem 24MC

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How can you "charge" an object? Hint: This is a physics question. A. By adding or removing protons from nucleus of an atom. B. By adding or removing electrons from the outer shell of atom. C. By adding or removing neutrons from atoms. D. By connecting it to a power supply. E. All of the above.

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The correct option from the given set of options.

Solution Summary: The author explains that the correct option is "d. lacks one electron of having a filled outer shell". The atomic number determines the position of an element in periodic table.

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