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Use the symbols of the elements described in the following clues to fill in the blanks that spell out the name of a famous American scientist. Although this scientist was better known as a physicist than as a chemist, the Philadelphia institute that bears his name does include a biochemistry research facility. (1) The oxide of this alkaline earth metal is amphoteric. (2) The element that makes up approximately 3.0% by mass of the human body. (3) The element having a 7 s 1 valence electron configuration. ( 4) This element is the alkali metal with the least negative standard reduction potential. Write its symbol in reverse order. (5) The alkali metal whose ion is more concentrated in intracellular fluids as compared with blood plasma. (6) This is the only alkali metal that reacts directly with nitrogen to make a binary compound with formula M 3 N. (7) This element is the first in Group 3A (13) for which the +1 oxidation state is exhibited in stable compounds. Use only the second letter of its symbol.

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Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

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Section
BuyFindarrow_forward

Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 19, Problem 111MP
Textbook Problem
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Use the symbols of the elements described in the following clues to fill in the blanks that spell out the name of a famous American scientist. Although this scientist was better known as a physicist than as a chemist, the Philadelphia institute that bears his name does include a biochemistry research facility.

Chapter 19, Problem 111MP, Use the symbols of the elements described in the following clues to fill in the blanks that spell

(1) The oxide of this alkaline earth metal is amphoteric.

(2) The element that makes up approximately 3.0% by mass of the human body.

(3) The element having a 7s1 valence electron configuration.

(4) This element is the alkali metal with the least negative standard reduction potential. Write its symbol in reverse order.

(5) The alkali metal whose ion is more concentrated in intracellular fluids as compared with blood plasma.

(6) This is the only alkali metal that reacts directly with nitrogen to make a binary compound with formula M3N.

(7) This element is the first in Group 3A (13) for which the +1 oxidation state is exhibited in stable compounds. Use only the second letter of its symbol.

Interpretation Introduction

Interpretation: The given blanks are to be filled by the symbols of the elements that describe the given clues.

Concept introduction: Beryllium reacts with both acid and base, hence it is amphoteric. The alkali metal whose ion is more concentrated in intracellular fluids as compared to blood plasma is potassium.

To determine: The symbols of the elements that describe the given clue.

Explanation of Solution

Explanation

The alkaline earth metal that has amphoteric oxide is beryllium. Its symbol is Be .

It reacts with both acid and base, hence it is amphoteric. Its reaction with hydrochloric acid forms beryllium chloride as shown below,

BeO+2HCl+H2OBeCl2+2H2O

Its reaction with base sodium hydroxide is,

BeO+2NaOH+H2ONa2Be(OH)4

The element that makes up approximately 3.0% by mass of the human body is nitrogen. Its symbol is N . Therefore, the element in blank (2) is N .

The general electronic configuration of alkali metal is ns1 . Therefore, the element with 7s1 valence electronic configuration is alkali metal Fr . The element in blank (3) is Fr .

The alkali metal with the least negative standard electrode potential is sodium. Its symbol is Na . On reversing the symbol, it becomes aN

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Chapter 19 Solutions

Chemistry: An Atoms First Approach
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