A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 20.00 µmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/8 of the initial amount. sample A B с symbol 152 63 60 27 67 31 103 radionuclide 46 Eu Co Ga Pd half-life 13. years 5.0 years 78.0 hours 17. days initial radioactivity ✓ (choose one) 1 (highest) 2 3 4 (lowest) (choose one) ✓ (choose one) ✓ time for amount of radionuclide to decrease to 1/8 of initial amount years years hours days

A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 20.00 µmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/8 of the initial amount. sample A B с symbol 152 63 60 27 67 31 103 radionuclide 46 Eu Co Ga Pd half-life 13. years 5.0 years 78.0 hours 17. days initial radioactivity ✓ (choose one) 1 (highest) 2 3 4 (lowest) (choose one) ✓ (choose one) ✓ time for amount of radionuclide to decrease to 1/8 of initial amount years years hours days

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Calculate the concentration of unknown red dye solution
Explain arrow pushing mechanism. ASAP
A hi Experts...please help me, i need it until 6:30 pm. Hope you can answer it BEFORE the time thank you soo much! KINDLY MAKE THE ANSWER SHORT FOR 2-3 SENTENCES IF POSSIBLE. ---Explain the effect of heat and time on foaming characteristics of protein
Can someone please help
-858kcal to mcal
I need help with question number 1
in ISD X Socrative × © If [H+1 = 2.33 x 10-3 M, what is x G CûG b.socrative.com/student/#quiz ged Bookmarks HAC HAC Listening is everythi... Courses Quiz: DO- Fall Seme... ipcert.aspx 888 HINES8416 20 of 34 If [H+] = 2.33 x 10-3 M, what is the [OH-] of the solution? A 4.27 x 10^-12 2.43 x 10^-14 C SUBMIT ANSWER B D Socrative DELL Denton ISD 1.2.2-Licensing | P.. 1.89 x 10^-7 3.45 x 10^-5 IN X
Please send me the question in 20 minutes it's very urgent plz only question number 2
36. answer only asap
Ј.B. is a 52-year-old man weighing 72 kg who has been treated with gentamicin for confirmed gram-negative pneumonia. Design the dose of gentamicin (given in a one-hour infusion) to achieve Cmax = 10 mg / L and Cmin = 1.6 mg / L with values for V = 18 L and t1 / 2 = 8 hours. please give me answer using pharmacokinetics!!! URGENT
The students conducted the assay for LDH activity using the two serum samples. Each cuvette (path length 1 cm) contained 3ml of a suitable assay buffer (including pyruvate as substrate). 20 microlitres of either serum was added to the cuvette and the absorbance values immediately recorded at the optimum wavelength for a period of 5 minutes (absorbance readings taken every 30 seconds). Protein concentration of serum sample (mg/ml) Change in absorbance at optimum wavelength per minute Control serum (C) 8 -0.04 Diseased serum (D) 7.8 -0.6 1c. Using the molar absorption coefficient of NADH as 6220 M-1 cm-1, and by application of the Beer-Lambert law, estimate the enzyme activity in the two samples (C and D). Express activity as moles per second. 1d. Estimate the specific activity of the two samples (moles per second per microgram).
Why HPLC is an important technique in the fields of chemistry . explain with different reasons?