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Concept Review Questions 2.51 How can iodine (Z= 53) have a higher atomic number yet a lower atomic mass than tellurium (Z= 52)? %3D

Concept Review Questions 2.51 How can iodine (Z= 53) have a higher atomic number yet a lower atomic mass than tellurium (Z= 52)? %3D

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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er 2· The Components of Matter embook.ir/edu Elements: A First Look at the Periodic Table (Sample Problem 2.6) Concept Review Questions 2.51 How can iodine (Z = 53) have a higher atomic number yet a lower atomic mass than tellurium (Z= 52)? %3| 2.52 Correct each of the following statements: (a) In the modern periodic table, the elements are arranged in or- der of increasing atomic mass. (b) Elements in a period have similar chemical properties. (c) Elements can be classified as either metalloids or nonmetals. 2.53 What class of elements lies along the "staircase" line in the periodic table? How do the properties of these elements compare with those of metals and nonmetals? 2.54 What are some characteristic properties of elements to the left of the elements along the "staircase"? To the right? 2.55 The elements in Groups 1A(1) and 7A(17) are all quite reac- tive. What is a major difference between them? Skill-Building Exercises (grouped in similar pairs) 2.56 Give the name, atomic symbol, and group number of the element with each Z value, and classify it as a metal, metalloid, or nonmetal: (a) Z= 32 (b) Z = 15 (c) Z= 2 (d) Z= 3 (e) Z= 42 2.57 Give the name, atomic symbol, and group number of the na otolloid or
Transcribed Image Text:er 2· The Components of Matter embook.ir/edu Elements: A First Look at the Periodic Table (Sample Problem 2.6) Concept Review Questions 2.51 How can iodine (Z = 53) have a higher atomic number yet a lower atomic mass than tellurium (Z= 52)? %3| 2.52 Correct each of the following statements: (a) In the modern periodic table, the elements are arranged in or- der of increasing atomic mass. (b) Elements in a period have similar chemical properties. (c) Elements can be classified as either metalloids or nonmetals. 2.53 What class of elements lies along the "staircase" line in the periodic table? How do the properties of these elements compare with those of metals and nonmetals? 2.54 What are some characteristic properties of elements to the left of the elements along the "staircase"? To the right? 2.55 The elements in Groups 1A(1) and 7A(17) are all quite reac- tive. What is a major difference between them? Skill-Building Exercises (grouped in similar pairs) 2.56 Give the name, atomic symbol, and group number of the element with each Z value, and classify it as a metal, metalloid, or nonmetal: (a) Z= 32 (b) Z = 15 (c) Z= 2 (d) Z= 3 (e) Z= 42 2.57 Give the name, atomic symbol, and group number of the na otolloid or
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