Given table has to be completed with the correct values. Concept Introduction: Radioactive nuclides undergo disintegration by emission of radiation. All the radioactive nuclide do not undergo the decay at a same rate. Some decay rapidly and others decay very slowly. The nuclear stability can be quantitatively expressed by using the half-life. The time required for half quantity of the radioactive substance to undergo decay is known as half-life. It is represented as t 1 / 2 . Half-life of a radionuclide is a constant. The equation that relates amount of decayed radioactive material, amount of undecayed radioactive material and the time elapsed can be given as, ( Amount of radionuclide undecayed after n half lives ) = ( Original amount of radionuclide ) x ( 1 2 n )

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Chapter 11, Problem 11.29EP

Interpretation Introduction

Interpretation:

Given table has to be completed with the correct values.

Concept Introduction:

Radioactive nuclides undergo disintegration by emission of radiation. All the radioactive nuclide do not undergo the decay at a same rate. Some decay rapidly and others decay very slowly. The nuclear stability can be quantitatively expressed by using the half-life.

The time required for half quantity of the radioactive substance to undergo decay is known as half-life. It is represented as t1/2. Half-life of a radionuclide is a constant.

The equation that relates amount of decayed radioactive material, amount of undecayed radioactive material and the time elapsed can be given as,

(Amount of radionuclideundecayed after n half lives) = (Original amount of radionuclide) x (12n)

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