The value of A in the element symbol below determines the isotope of the atom.

Q: How many neutrons does the following isotope of oxygen have? O 18 0 8 O 10 O 26 O 18

A: Given data: The isotope of oxygen O818 Required: Number of neutrons

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: When a beta particle is emitted, the charge of the atom O increase decrease does not change O any…

A: Radioactive substances decay over time continuously & sometime changes the charge of atom and…

Q: An atom of 124^Sn Has an experimentally determined nuclear mass of 123.905 3 amu calculate the mass…

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Q: Choose the BEST answer to the following. Which of these can NOT be deflected by electrical or…

A: Alpha rays and Beta rays are the rays that have charge; thus, they are deflected by electrical or…

Q: An unknown radioactive element decays into non-radioactive substances. In 360 days the radioactivity…

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Q: The ratio of the stable Ar40 to K40 atom is found to be 10 in an old rock. All Argon atoms were…

A: Given that: Ar40K40=10Half life of K40, t1/2=1.25×109 years   (Available value)decay constant,…

Q: Which can you observe in a radioactive material? a. It produces only a little amount of heat b. The…

A: Which can you observe in a radioactive material?

Q: One half-life of an isotope is 22 years. How many years would it take to have only 25% of the…

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Q: SCPI The The 16. number of alpha particles number of beta particles 3 B 3 2 4 D. 1 1 17. A nucleus…

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Q: Why do different isotopes of the same element have the same chemical properties?

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Q: Tritium is an isotope of hydrogen that decays by emitting beta particles. It is used in some…

A: 1) a)  Beta decay of tritium is given by the decay equation,

Q: Element X has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes…

A: Dear student The average atomic mass of an atom can be found by : Mav = f1m1 + f2m2 + f3m3 Where f…

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

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Q: An unknown radioactive element decays into non-radioactive substances. In 920920 days the…

A: (a) Half-life

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

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Q: Isotope X has a half-life of 100 days. A sample is known to have contained about 1,500,000 atoms of…

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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: The mass of an idotope of an sulfur atom is A= 1+2Z. Please calculate the number of neutrons found…

A: Given that:- A=Mass number of sulfur=1+2Z where, Z=Atomic number of sulfur=16

Q: Is the number of protons present inside the nucleus is equal to the number of electrons outside the…

A: Introduction :- The given statement is based upon the fact that whether an atom is charged or…

Q: The barium isotope 133Ba has a half-life of 10.5 years. A sample begins with 1.0 × 1010 133Ba atoms.…

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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: Two isotopes of a certain element have binding energies that differ by 5.03 MeV. The isotope with…

A: When nucleus break apart into nucleons then tremendous amount of energy is released.

Q: 1. Copper has an average atomic mass of 63.55 and has two naturally occurring isotopes, 63Cu and…

A: Taking the mass of the Cu65 be 'x' in the given composition. Now if we assume 100% of the total…

Q: What is a radioactive isotope

A: Required : What are radioactive isotopes.

Q: 1. Identify the isotope notation for the isotope of iodine that has 67 neutrons. O 134 531 O 125 671…

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Q: Complete the table for the radioactive isotope. Isotope 14C, Half Life (In years) 5715, Initial…

A: Half life of carbon 14 is 5715 years

Q: What revolves about the positive nucleus in a definite orbit ? a. neutron o b. electron O C. proton…

A: Solution- According to Bohr's model in atomic physics the electrons travels in circular orbits…

Q: out of the following, which is not emitted by radioactive substance? A. Electrons B. Electromagnetic…

A: The radioactivity is the spontaneous phenomenon by which the alpha particles, or the beta particles…

Q: As a staff scientist at a nuclear power plant, it is your job to understand radioactive substances…

A: Here we use law of radioactive decay to find the answer

Q: The half-life of polonium is 139 days, but your sample will not be useful to you after 94% of the…

A: Calculate the decay constant of polonium. λ=ln2t1/2=ln2139 day=4.986×10-3 day-1 Here, λ is the decay…

Q: What forces hold the nucleus together? And how do those forces compare in magnitude to the…

A: The nucleus of an atom is held together by the strong nuclear force. This force is the strongest…

Q: The nuclear radius of a fictitious element is 3.145 fm. The number of protons and the number of…

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Q: The barium isotope 131 Ba has a half-life of 12 days. A 300 µg sample of 131 Ba is prepared.

A: Write the given values of this problem. Half-lifeT12=12 dayst=1 daysample(No)=300 μg

Q: 20U undergoes a series of reactions in which it emits eight He nuclei and six elections. Which…

A: In all nuclear reaction mass (mass number ) as well as charge (atomic number ) conserved.

Q: 3. Identify the isotope notation for the isotope of cadmium that has 54 neutrons. 108 54Cd 48Cd 102…

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Q: Carbon has three naturally occurring isotopes. The isotope, carbon-14, is radioactive. An atom of…

A: The answer is given below  As per the policy I can solve only one question

Q: Which statements below are true about the change in a nucleus that undergoes a decay and emits an…

A: In the given question, We have to discuss about, when an alpha particle is emitted from the nucleus…

Q: State why high energy electrons are used in determining nuclear size

A: The high energy electrons bombard into and collide with the nucleons and further to the internal…