Gamma Particles Number of Barriers 0 1 2 3 Activity (counts in 10 s) Cardboard Plastic Lead 252 250 241 228 227 199 234 193 144 209 200 114 231 202 76 202 206 63 (perform 1 trial for each material) 4 LO 5

Q: How many kJ of energy are released to form one mole of 116Cd from protons and neutrons if the atom…

A:

Q: 29 17. What information cannot be determined from the symbol notation 14Si? O the mass number O the…

A: To solve this problem we will use the concept of symbols notation

Q: 1) Write a balanced equation for alpha decay of meitnerium. 2) Write a balanced equation for alpha…

A: Balanced the given nuclear reaction under the given condition--

Q: Does the amount of radiation (cpm) change when shielding made from different material is used?

A: CPM refers to counts per minute and it is a standard unit used for monitoring the radiation.…

Q: What is different and what is the same for an atom of Sn-105 and an atom of         Sn-132?

A: There is a particular symbolic notation for each element of the periodic table.  For example: C612…

Q: Define the term Electron capture?

A: The term electron capture has to be explained.

Q: What are uranium’s advantages?

A: Uranium's advantages : The advantages of Uranium is given by following ; Safer and more efficient…

Q: Compare the doses from natural radioactivity with radiation. Natural radioactivity and its…

A: Natural radioactivity is a phenomenon that occurs when unstable atomic nuclei decay and emit…

Q: How many nucleons are there im  40^Ca

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: Discuss the importance of identifying Uranium contents and how does it affects the GR reading

A: Uranium is an element which is represented using the symbol 'U'. The atomic number of uranium is 92.…

Q: How does Hydrogen's atomic size and ionization energy level affect it's chemical properties?…

A: Hydrogen is non-metal and it makes the hydride anions so, due to this reason sometimes it also…

Q: via beta emission, an-

A:

Q: Which product is formed by gamma emission from technetium-99? The atomic number of technetium is 43.

A: The product that is formed by gamma emission from technetium-99 is to be determined. The atomic…

Q: How are Deuterium and tritium are useful/

A: Deuterium and tritium both are isotopes of element hydrogen. Furthermore, deuterium has atomic mass…

Q: What are the impications of Thompson related to cathode rays?

A: J.J. Thompson proposed a plum pudding model of the atom in which he stated that it had…

Q: Explain the meaning of half-life.

A: Radioactivity: It is the phenomenon of decaying, in which there will be the loss of energy of an…

Q: When an atom undergoes gamma decay the atomic number decreases by 2 and the mass number decreases by…

A:

Q: The source of the energy produced by the sun is

A: The sun, like other stars, is a giant nuclear reactor in space. The energy produced by the sun is…

Q: Name the types of radiation known to be emitted byradioactive elements.

A: Radiation is energy that is provided by a  source and travels through space. Radiation energy has…

Q: You buy a thin suit made of lead to protect yourself from radiation if we have a nuclear war. Your…

A: The penetrating power is the energy required to eject the radiation particles from an atom. When the…

Q: Calculate the energy equivalent in kJ of 4.22 g of mass. ΔΕ =

A: Mass (m) = 4.22 g = 4.22×10-3 kg Energy (ΔE) = ?

Q: What is Radiation?

A: Electromagnetic radiations Electromagnetic radiations are the collection of different forms of…

Q: There is a safe level of radioactive carbon dioxide on earth and inside your body because of:  a.…

A: As the carbon-14 founds in the upper earth atmosphere and created when neutrons originating from…

Q: List the secondary processes that can occur following the creation of a core hole in an atom.

A: When an atom is ionized and a core hole is created , several secondary process can occur some of…

Q: What is the composition of Radon?

A:

Q: Write a balanced fusion reaction that uses lithium-6 as a reactant.  You may have additional…

A: When neutron( 0n1) bombardment occurs on Lithium-6 (3Li6) ,then Helium-4( 2He4) and tritium (H3)…

Q: 17. Nickel-63 decays by beta decay. Write the equation for this reaction. 18. Meitnerium-276…

A: Concept is based on radioactive decay.

Q: What is the radium

A: Radium a chemical element with atomic number 88. It is a white radioactive metal used in the…

Q: 6.) Cesium-134 undergoes decay by B emission and has a half-life of 2.0 years. How much of a 3.50-g…

A: Given:                 Half life of Cesium-134 is 2.0 years                 Taken mass of Cesium-134…

Q: What is a gamma-ray?

A: Isotopes are those elements which have same atomic number but different mass numbers. There are many…

Q: Why is iron the most abundant element in Earth’s core?

A:

Q: Please answer this question correctly. 1. Write the configuration of sulfur after it has achieved…

A:

Q: In thinking of Harmful and Beneficial Effects of Radiation. It is CORRECT to affirm that: •…

A: In thinking of Harmful and Beneficial Effects of Radiation, correct statement is:

Q: Why is Marie Curie's discovery of Polonium and Radium important? And how did it affect the world?…

A: Henry Becquerel was the one who had started working on some elements and he found some elements that…

Q: Using belt of stability predict the mode of decay of Indium -120. Beta

A: Those nucleus which are present below the stability belt , try to get stabilised by positron…

Q: What is spontaneous radiation?

A: An electron absorbs energy and excited to the upper energy level.

Q: Write the symbol for alpha beta and gamma radiation. Include atomic mass and atomic number

A: Introduction :-  α –decay:-                 "Whenever the element emits an α-particle, the mass…

Q: Fill in the blanks with the correct information. Use [a] as a guide. a. Pu-244 is unstable because…

A: since,z>83,all nuclei are unstable. Where z is atomic number.

Q: Write a balanced equation for capture of an electron by cadmium-104

A: The objective of the question is to write a balanced nuclear equation for the capture of an electron…

Q: An element has a atomic number of 71 and a mass number of 113. This element undergoes  K-Electron…

A: When an element undergoes K-electron capture, a proton in the nucleus is converted into a neutron,…

Q: An atomic anion with a charge of -3 has the following electron configuration: What is the chemical…

A: We have to predict chemical symbol, electron present , electron in 1s .

Q: The source of the energy produced by the sun is

A: The sun is a star, and like all stars, it is made up of a hot, glowing gas. This gas is primarily…

Q: Which of these is a characteristic of alpha radiation? Alpha radiation is not able to penetrate the…

A: Alpha radiations are positively charged particles. These have two protons and two neutrons. The…

Q: They found out that the half or radium is 1700 years. What percentage of radium may be expected to…

A: Given: Half life of radium = 1700 years