Discuss the principles in Fajan’s dye method of assay.

Q: Long and strong Conclusion about radioactivity

A: Radioactive decay involves the spontaneous transformation of one element into another. The only way…

Q: What is the mass number of an alpha particle?

A: Mass number is the total number of nucleons. It is the sum of number of protons and neutrons.

Q: What radioactive isotope is used to target thyroid cancer? cobalt carbon iodine O polonium

A: What radioactive isotope is used to target thyroid cancer ?

Q: Lead-214 releases both an alpha and a beta particle. What element results and what is its mass…

A: Beta particle is similar to the emission of an electron and alpha particle is similar to the…

Q: Why is carbon dating ineffective in finding the ages of dinosaur bones?

A:

Q: Give three (3) examples of uses of Radioactivity (for example, in medicine, agriculture industry,…

A: Objective: To determine the three examples of uses of radioactivity.

Q: 1 atomic mass unit is about:

A: One atomic mass unit is defined as a mass exactly equal to one – twelfth the mass of one carbon -12…

Q: What is the half-life, t½, (in hr) when the concentration was 100 mg/L?

A: The concentration is decreasing at rate of 10mg/L/hr .

Q: dating

A: Radioactivity is a process in which an unstable nucleus spontaneously breaks down into stable nuclei…

Q: Source of radioactive cobalt Co. Radioactivity: After 17 years of manufacture, it is 0.547 Korean…

A: Let the radioactivity of Co after time t be denoted as N, the decay constant be denoted by λ, the…

Q: PRN DRE to +

A:

Q: Why does radioactivity take place?

A: Radioactivity is the process of emitting radiation.

Q: Differentiate the following as related to measurements: resolution, precision, and accuracy a)…

A: In all experiments in science, measurement is a important part. We need to measure different…

Q: What are cobalt gamma rays? Give their uses.

A: Cobalt-60 at higher excited states converts to Nickel-60 by beta emission to stabilize itself.…

Q: What do you understand by crystallography?

A: Crystallography is the study of crystals, their structures and properties. Crystals are arranged in…

Q: A forensic tool used to identify the chemical makeup? A) calibur B) lie detector C) gas…

A: A forensic tool used to identify the chemical make-up of substances used in the commission of…

Q: A pound of coffee beans yields 50 cups of coffee (4cups = 1qt). How many mililiters of coffee can be…

A: Given: The number of cups are n=50 cups. The quantity is 4 cups =1 qt. The mass of coffee bean is…

Q: 18) What is the remaining amount of radioactivity when the Starting amount is 12.5-g and there was…

A: Given data: Initial amount of the sample m0 =12.5g Number of half- life n =4.25

Q: Why is there a split in a nib of pen?

A: When a liquid flow in narrow space without the assistance of the external force of gravity, or even…

Q: For questions no. 4 and 5. Given: Radium decomposed at a rate proportional to the quality of radium…

A:

Q: what is the uses of radioactivity in x-rays

A: X-ray is an energetic wave. It is the most penetrating wave. Its wavelength ranges from 10…

Q: If you purchased 3.61 Mu Ci of sulfur-35, how many disintegrations per second does the sample…

A: Given: Initial amount of sulfur-35 = 3.61 x 10-6 Curieand 1 Curie = 3.7 x 1010 Bq1 Bq = 1 decay/s

Q: These questions are sample activity in our physics lab, and I still don't get it. can you please…

A: There are some rules for significant numbers 1) The zero preceding the non zero value will not be…

Q: cadmium -107 has a half -life of 6,52 hours .if you start off with sample which sample which has an…

A:

Q: Nodal analysis methods

A: Given circuit,

Q: 9. What is a benefit of repeated trials during an experiment?

A:

Q: A 250g sample of Calcium-47 has a half-life of 4.536 ????. How much Calcuim-47 remains after six…

A: Given data:  Initial amount of calcium-47 (N0) = 250 g Number of half-lives (n) = 6 Required: The…

Q: What are the types of Radioactivity?

A: There are three types of radioactivity and they are: Alpha decay: An alpha particle is a helium…

Q: ad the activity or a sampie Containg 02x10-6g 0f 60 27 9 Co (T1/2= 5:27 years)

A: Given Mass = 4.02 × 10-6 kg T1/2 = 5.27 year

Q: Explain how "carbon dating" is used to establish the age of once living things.

A: Carbon dating is a well-known technique, which is used to determine the approximate age of…

Q: Calculate the exposure rate at 1.0 m from an unshielded 10 mCi of Cs137 source.

A: SOlution: Given that d = 1 m isotope Cs 137 A =10 mCi

Q: Suppose that a sample of lead-214 initially has an activity of 100 Ci. The half-life of lead-214 is…

A:

Q: When food is irradiated with gamma rays from a cobalt- 60 source, does the food become radioactive?…

A: Food does not become radioactive. The main aim of irradiating food is to protect food from spoiled…

Q: was the first to discover the phenomenon of radioactivity . O J.J.Thompson O H. Wells H. Becquerel O…

A: Correct option is (c) i e H.Becquerel .

Q: Which of the following detectors can in principle be used as a dose-rate monitor? Give the best…

A: