Why is a sample of radioactive material always a little warmer than its surroundings?

Q: A nucleus of radius 3.26 fm contains 10 neutrons. Identify the element by name (not symbol). Use…

A: Given : Radius of nucleus (R) = 3.26 fm No. of neutrons (N) = 10

Q: Describe briefly the following: Under NUCLEAR PHYSICS, Photoelectric effect Atomic spectra…

A: 1. Photoelectric effect It is an experimentally observed phenomenon and gives us a picture of…

Q: The element boron absorbs neutrons very effectively, without scattering them very much. In a nuclear…

A: In nuclear fission reactions, the number of neutrons produced are in excess of the neutrons that get…

Q: In which of the following is it possible for an entirely new atom to form. (Mark all that apply)…

A: Given problem is based on the Nuclear Physics concept. We have asked, in which process entirely new…

Q: Californium-246 is formed by bombardment of uranium-238 atoms. If 4 neutrons are also formed, what…

A: Californium-246   The atomic number, Z=98   The atomic mass, A=246

Q: What gives the nucleus it’s positive charge?

A: nucleus positive charge

Q: After a nucleus undergoes four gamma decays, its’ atomic number   A. decreases by 8   B. does…

A: Given data: Nucleus undergoes four gamma decays Required: Change in atomic number of nucleus

Q: nucleus of radius 4.62 fm contains 26 protons. How many neutrons does the nucleus contain?

A: Number of neutron = mass number -number of proton

Q: What element results if two protons and two neutrons are ejected from a radium nucleus?

A: The remaining nucleus is that of Radon with atomic number 86.The transformation of one nucleus of…

Q: Consider these three nuclei: A. Th-233; B. U-235; C. U-238. From most to least, rank them by the…

A: *A the atomic number of Th-233 is 90. then the number of proton and electron is 90. Number of…

Q: Explain the emission of high-energy beta particles

A: Beta particles have same mass and charge as electron. It only differs from electron in its origin.

Q: Determine the number of neutrons in a bromine nucleus, which has a radius of approximately 5.32 ✕…

A: The radius of the bromine nucleus is, r=5.32×10-15 m The mean radius of the nucleus can be given as,…

Q: A radioactive element has an original mass of 150 grams. How much would be left in the parent atom…

A:

Q: What is the origin of most of the natural radiation we encounter?

A: Most of the natural radiation we encounter has radon 222, cosmic, ground and human tissue. Radon 222…

Q: The most common oxygen isotope is °0, but the rarer isotopes O and 10 of this element also exist in…

A:

Q: How is collision between two billiards balls different from a collision between an alpha-particle…

A: There are three different kinds of collisions. Elastic Inelastic Completely inelastic.

Q: Which element's isotope is often used to treat cancer patients?

A: The correct option is cobalt Cobalt therapy or cobalt -60 therapy is the medical use of gamma rays…

Q: If a pair of carbon atoms were fused, and the product were to emit a beta particle, what element…

A: Given, a pair of carbon atoms were fused and the product emits a beta. Thus there will be an…

Q: The isotope of lithium used in a hydrogen bomb is Li-6, whose nucleus contains three protons and…

A: A nuclear fusion reaction is given, the products of which will be as stated below.

Q: What element spontaneously splits into a lighter nucleus and an even lighter helium nucleus?

A: Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller…

Q: Which isotope of hydrogen—deuterium or tritium—is abundant and which is scarce?

A:

Q: Choose the BEST answer to the following. A certain element emits 1 alpha particle, and its products…

A: An alpha decay of 2He4 changes both the atomic mass and atomic number of the resulting element…

Q: What do you think is the reason for an increasing atomic radius within one group?

A: As we move down a group the number of energy levels increase.

Q: What are the types of radiation emitted by the nuclei of radioactive elements?

A: The nucleus of an atom consists of protons and neutrons. Neutrons are neutrally charged and protons…

Q: When was element Plutonium discovered? O 1935 O 1943 O 1941 O 1940

A:

Q: At 6:00 AM a hospital uses its cyclotron to make 1 milligram of the isotope fluorine-18 for use as a…

A: The initial value of isotope fluorine -18  is N0 = 1 mg. The half-life of F-18 is 1.8 hr. F-18 left…

Q: Which is the most penetrating radiation? Group of answer choices a)blu-ray b)alpha ray c)beta ray…

A: Penetrating power means how much these radiation can penetrate

Q: What is true about an alpha particles when closest to the nucleus

A: To determine: The truth about the alpha particles when it is closest to the nucleus Introduction:…

Q: The nucleus of an atom emits a high energy electromagnetic wave. This nucleus has probably changed…

A: When a nucleus emmits a radiation of high energy electromagnetic wave then then it transformers to a…

Q: In 4 years, 3/4 of nuclei of a given radioactive substance is decayed. What is the half- life of the…

A: Definition of  Half life:- Half life of a radioactive sample is defined as the time elapsed before…

Q: Which one of the following processes cause an increment in the atomic number? O Alpha emission Beta…

A: During an alpha decay, the mass number is decreased by 4 units and the atomic number is decreased by…

Q: What does the atomic number of an element tell us about it

A: Explanation: Atomic number of an element tells that the number of protons in the nucleus of the…

Q: Elements that appear in the same column of the periodic table often share similar chemical…

A:

Q: For a PET Positron Emission Tomography procedure, a patient is injected radioisotope, and after a…

A: For PET procedure, a patient is injected with radioactive isotope of fluorodeoxyglucose (FDG), a…

Q: Alpha, Beta-plus, Beta-minus and Gamma decay are all different forms of radio-Active decay. A…

A: alpha decay decreases the atomic number(Z) by 2 and atomic mass(A) by 4 hence after 1 alpha decay ,…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.