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Chapter 42: Q 24 Exercise (page 1236)

Identify the unknown isotope X in the following decays.

a.X鈫�Ra224+伪b.S35鈫�X+e-+谓炉c.X鈫�K40+e++谓d.Na24鈫�Mg24+e-+谓炉鈫�X+纬

Short Answer

Expert verified

Hence, the values of X is:

a.)X=Th228b.)X=Tl207c.)X=Li7d.)X=Ni60

Step by step solution

01

Given information

a.X鈫�Ra224+伪b.S35鈫�X+e-+谓炉c.X鈫�K40+e++谓d.Na24鈫�Mg24+e-+谓炉鈫�X+纬

02

Explanation (a)

In the following decays, we will find for the unknown isotope X:

a.)X鈫�Ra224+伪

The decay is:

X=Ra224+He4X=Th228

03

Explanation (b)

The decay is:

04

Explanation (c)

The decay is:

05

Explanation (d)

The decay is:

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