FireFlight
21.07.2019 •
Chemistry
Three radioisotopes are being discussed in a chemistry class. technetium-99m has a half-life of 6 hours. rubidium-87 has a half-life of 50 billion years. which describes who would most likely use each isotope? a geologist would use technetium-99m because short-life indicates an older organism, and a doctor would use rubidium-87 because it allows for a more-accurate measurement of disease. a doctor would use technetium-99m because a short half-life indicates a quick measurement, and a geologist would use rubidium-87 because a longer half-life means that there is a longer time to measure old rock. a doctor would use technetium-99m because a short half-life indicates a quick measurement, and an archeologist would use rubidium-87 because anything containing carbon also contains rubidium. a geologist would use technetium-99m because a short half-life indicates an older organism, and an archeologist would use rubidium-87 because anything containing carbon also contains rubidium.
Solved
Show answers
More tips
- D Dating, Love, Relationships Why Should the Man be Active and the Woman Passive during Foreplay?...
- F Food and Cooking How to Properly Collect Mushrooms? A Comprehensive Guide...
- C Computers and Internet 3D Glasses! What is this thing?...
- C Computers and Internet How to insert videos into LiveJournal?...
- C Computers and Internet How Much Does an iPhone Cost in America?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
Answers on questions: Chemistry
- C Chemistry Make an emergency plan and make your own first aid and safety box for your household, label and explain how they can be useful in an event of an earthquake s aftermath.OS INC...
- C Chemistry If the AHsolution, KI = 15 kJ/mol, then calculate the lattice energy for potassium iodide using the data from a standard reference table shown here. DeltaHhydration K+ -335kJ/mol...
- C Chemistry The final temperature is 20.9 0C when a piece of silver with a mass of 26.8 grams at an initial temperature of 134 0 C is dropped into 200 grams of water at 20.0 0 C. What is the...
- C Chemistry Which elements are found in a high portion of earths crust...
- C Chemistry Which type of electromagnetic waves has more energy, an ultraviolet wave or an infrared wave? how can you tell this by looking at the electromagnetic spectrum?...
- C Chemistry Most of the energy from a lower trophic level is converted to mass. energy. heat. height....
- C Chemistry Which is NOT an example of ways pants engage with abiotic factors? A: plants get eaten by animals B: plants use sunlight C: plants require water D: plants use carbon dioxide...
- C Chemistry A space shuttle is covered with two layers of carbon. The two layers are the same size and have the same number of molecules. When the space shuttle is sitting on the ground, the...
- M Mathematics Why are the mode median and mean call measures of the center?...
- M Mathematics Given: t is the midpoint of jk, jk= 5x-3 and jt =2x+1. determine the length of jk...
Ответ:
Ответ:
A doctor would use technetium-99m because a short half-life indicates a quick measurement, and a geologist would use rubidium-87 because a longer half-life means that there is a longer time to measure old rock.
Explanation:
The radioisotopes are used to measure the presence of certain elements in molecules and in different substances, Technetium-99m has a short time of half life, 6 hours is good for doctors to measure the presence of that element in the human body or in another organisms, in the case of geologists, Rubidium-87, and its presence in certain rocks can make an impact on the presence and age of those rocks.
Ответ:
Extinction Stay the same
Explanation: