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Use noble gas and spdf notations to depict electron configurations for the following metals of the third transition series. (a) Tantalum, Ta. The metal and its alloys resist corrosion and are often used in surgical and dental tools. (b) Platinum, Pt. This metal was used by pre-Columbian Indians in jewelry. Now it is still used in jewelry but it is also the basis for anti-cancer drugs and catalysts (such as those in automobile exhaust systems).

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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

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Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 7, Problem 7PS
Textbook Problem
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Use noble gas and spdf notations to depict electron configurations for the following metals of the third transition series.

(a) Tantalum, Ta. The metal and its alloys resist corrosion and are often used in surgical and dental tools.

(b) Platinum, Pt. This metal was used by pre-Columbian Indians in jewelry. Now it is still used in jewelry but it is also the basis for anti-cancer drugs and catalysts (such as those in automobile exhaust systems).

a)

Interpretation Introduction

Interpretation:

Tantalum (Ta) electronic configuration has to be predicted using noble gas and spdf notation.

Concept Introduction:

Electronic configuration: It is defined as the arrangement of electrons in the orbitals in increasing order of energy.  Lower energy orbitals gets filled first followed by higher energy orbitals.

Explanation of Solution

The noble gas notation: The atomic number of Tantalum is 73. The first 54 electrons are identified by the symbol of the Xenon (Xe), a noble gas. The remaining 19 electrons are assigning to the 4f, 5d, and 6s sub-shells. Hence, Hund’s rule is followed in the box notation.

AtomicnumberofTantalum(Ta)=73Complete (spdf)notationof(Ta)=1s22s22p63s23p63d104s24p64d105s25p64f145d36s2Orbital filling method=1s22s22p63s23p63d104s24p6&#

b)

Interpretation Introduction

Interpretation:

The electronic configuration of Platinum has to be derived using noble gas and spdf notations.

Concept Introduction:

Refer part (a).

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Chemistry & Chemical Reactivity
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