182Ta is a radioisotope with a half-life of approximately 114 days. A student works with a sealed source of 182Ta with a current activity of 0.10 μCi. Complete the following table.Atomic Number Mass Number Number of Neutrons Half-Life 114 days Current Activity 0.10 μCi Number of Half-Lives between now and 342 days from now Remaining activity 342 days from now (as a percentage) % Report to 2 significant figuresRemaining activity 342 days from now (in μCi) μCi

Atomic no. of Ta = 73 Mass number of Ta = 182 Determination of no. of neutrons: n=Mass no.-Atomic…

Answered: 182Ta is a radioisotope with a…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter25: Nuclear Chemistry

Section25.4: Rates Of Nuclear Decay

Problem 25.6CYU

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¹⁸²Ta is a radioisotope with a half-life of approximately 114 days. A student works with a sealed source of ¹⁸²Ta with a current activity of 0.10 μCi. Complete the following table.

Atomic Number
Mass Number
Number of Neutrons
Half-Life	114 days
Current Activity	0.10 μCi
Number of Half-Lives between now and 342 days from now
Remaining activity 342 days from now (as a percentage)	%	Report to 2 significant figures
Remaining activity 342 days from now (in μCi)	μCi

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