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Chapter 1: Q23E (page 1)

Question: An element X has five major isotopes, which are listed below along with their abundances. Calculate the average atomic mass, and identify the element.

Isotope

Percent Natural Abundance

Mass(u)

46X

8.00

45.95269

47X

7.30

45.951764

48X

73.80

47.947947

49X

5.50

48.947841

50X

5.40

49.944792

Short Answer

Expert verified

Answer

The average atomic mass is 47.88 and the element is Titanium.

Step by step solution

01

Definition of Average atomic mass

An average atomic mass or atomic weight of an element is said as weighted average mass of the atomswhich occurs in sample of the element.

02

Calculation of average atomic mass

03

 Step 3: Identification of element

From the periodic table, the average mass of 47.88 is Titanium. So, theelement is Titanium.

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