1. The dosage of technetium-99m for a lung scan is 20. μCi /kg of body mass....
1. The dosage of technetium-99m for a lung scan is 20. μCi /kg of body mass. How many millicuries of technetium-99m should be given to a 54 kg person? (Recall that 1 mCi = 1000 μCi.) Express the radiation dose in millicuries to two significant figures.
2. Suppose a person absorbed 46 mrad of alpha radiation. What would be the equivalent dose in millirems? Express the biological damage in millirems to two significant figures.
3. Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C has decayed to 1/8.00 of the original amount. How long ago was this plant alive? Express your answer numerically in years.
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1. The dosage of technetium-99m for a lung scan is 20. μCi /kg
of body mass....
A.The dosage of technetium-99m for a lung scan is 20. μCi /kg of body mass. How...
A.The dosage of technetium-99m for a lung scan is 20. μCi /kg of body mass. How many millicuries of technetium-99m should be given to a 59 kg person? (Recall that 1 mCi = 1000 μCi.) Express the radiation dose in millicuries to two significant figures. B.Suppose a person absorbed 42 mrad of alpha radiation.What would be the equivalent dose in millirems? Express the biological damage in millirems to two significant figures.
the dosage of technetium-99m for a lung scan is 20microCi/kg of body mass. how many milicuries...
the dosage of
technetium-99m for a lung scan is 20microCi/kg of body mass. how
many milicuries of technetium-99m should be given to a 48 kg
person?
Technetium Dosage. Radioactive isotopes are often used for medical imaging. Technetium-99m (Tc-99m) is a particularly popular...
Technetium Dosage. Radioactive isotopes are often used for medical imaging. Technetium-99m (Tc-99m) is a particularly popular isotope since it has a short half-life and is easy to make. Also, Tc-99m can be chemically bonded to a number of different compounds and cell types for imaging different parts of the body. Tc-99m has a half-life of 6.02 hours. It decays into Tc-99 by emitting a gamma ray of energy 140 keV. For this problem, assume that Tc-99m is present in the...
Review Constants 1 Periodic Table A 72 -kg person is accidentally exposed for 234 s to...
Review Constants 1 Periodic Table A 72 -kg person is accidentally exposed for 234 s to a 17 –mCi source of beta radiation coming from a sample of Sr. Part A What is the activity of the radiation source in disintegrations per second? Express your answer using two significant figures. IVO A O ? disintegrations per second Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B What is the activity of the radiation source in...
1.) 4.00 g of NaOH are dissolved in water to make 5.00 L of solution. What...
1.) 4.00 g of NaOH are dissolved in water to make 5.00 L of solution. What is the concentration of hydronium ions, [H3O+], in this solution? Express your answer with the appropriate units. 2.) If you wanted to determine how much KOH (potassium hydroxide; a strong base) was dissolved in water, you could titrate it with a known amount of KHP (potassium hydrogen phthalate; a weak acid) until a color change indicates that the base is completely neutralized. The molecular...
the dosage of
technetium-99m for a lung scan is 20microCi/kg of body mass. how
many milicuries of technetium-99m should be given to a 48 kg
person?
Technetium Dosage. Radioactive isotopes are often used for medical imaging. Technetium-99m (Tc-99m) is a particularly popular isotope since it has a short half-life and is easy to make. Also, Tc-99m can be chemically bonded to a number of different compounds and cell types for imaging different parts of the body. Tc-99m has a half-life of 6.02 hours. It decays into Tc-99 by emitting a gamma ray of energy 140 keV. For this problem, assume that Tc-99m is present in the...
Review Constants 1 Periodic Table A 72 -kg person is accidentally exposed for 234 s to a 17 –mCi source of beta radiation coming from a sample of Sr. Part A What is the activity of the radiation source in disintegrations per second? Express your answer using two significant figures. IVO A O ? disintegrations per second Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B What is the activity of the radiation source in...
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