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Periodic Table; Effective Nuclear Charge (Sections)The

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward ISBN: 9780321696724 27

Solution for problem 8E Chapter 7

Chemistry: The Central Science | 12th Edition

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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Chemistry: The Central Science | 12th Edition

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Problem 8E

Periodic Table; Effective Nuclear Charge (Sections)

The prefix eka- comes from the Sanskrit word for “one.” Mendeleev used this prefix to indicate that the unknown element was one place away from the known element that followed the prefix. For example, eka-silicon, which we now call germanium, is one element below silicon. Mendeleev also predicted the existence of eka-manganese, which was not experimentally confirmed until 1937 because this element is radioactive and does not occur in nature. Based on the periodic table shown in Figure, what do we now call the element Mendeleev called eka-manganese.

▲ Figure Discovering the elements.

Copper, silver, and gold have all been known since ancient times, whereas most of the other metals have not. Can you suggest an explanation?

Step-by-Step Solution:
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Chapter 3Assembly Language Fundamentals (MASM Specific) 3.1 Microsoft syntax notation: • [ …] optional elements. • {…} require a choice of one of the elements. Basic Language Elements • Comments always begin with a semi-colon ; • Size keywords: Work like data types, but any type of data can be used. ◦ Limits size of variable, not...

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Chapter 7, Problem 8E is Solved
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Textbook: Chemistry: The Central Science
Edition: 12
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
ISBN: 9780321696724

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Periodic Table; Effective Nuclear Charge (Sections)The

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