What is the meaning of half-life of an isotope. Explain with the help of an example

Q: Indium-116 is radioactive and has a half-life of 14.10 seconds. How much of a 9.10 mg sample would…

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Q: What are Radioactive Isotopes ?

A: The term isotope is defined as two or more form of the same element which differs in the number of…

Q: What is the primary factor that determines whether an nucleus is stable or unstable?

A: The nucleus is the small region that lies at the center of an atom. It is discovered in 1911 by…

Q: 4 35) The following nuclear reaction is known to occur: 2 H→ªHe This reaction is used in a fusion…

A: Given: Mass of 2H = 33.0 g Mass of electron = 0.00055 amu Mass of proton = 1.00782 amu Mass of…

Q: Alpha ... s Beta .... Gemma .... . Aluminum Teed Lead Which of the following BEST describes Gamma…

A: The correct option is (a): An atom shoots off a photon to release energy and stabilize it's nucleus.

Q: Which of the following statements is true of an alpha particle? A It is less massive than a beta…

A: Alpha particle or alpha ray is composite particles having 2 protons and 2 neutron tightly bound…

Q: stable isotopes, with low atomic numbers, have a N/Z ratio of 1. What does that imply

A: N/Z ratio - It is the ratio of the number of neutrons to the number of protons of the nucleus of an…

Q: Why do some isotopes undergo radioactive decay

A: The radioactive decay is shown by the isotopes having unstable nuclei due to the presence of excess…

Q: Compare and contrast the terms isotopes and radioisotopes

A: Isotopes are atoms of same elements which have same atomic number but different mass number. In…

Q: 3. In your own world, describe what "half-life" means.

A: It can be simply defined as what time taken for the substance to become its half (by mass,by…

Q: Which element is most likely to be radioactive?

A: Radioactivity It is the process by which an unstable atomic nucleus will lose energy through the…

Q: 4) A thorium atom of mass 232.038 u decays by the emission of an alpha particle to a radium atom of…

A: The decay to Th to Ra and alpha particle is shown as  90Th232 → 88Ra228 + 2He4 + energy the…

Q: What is meant by the half-life of a radioactive element?

A: The elements which have an unstable nucleus in their atoms and hence to get stability they emit…

Q: For a beta (β) particle, give the number of protons:  neutrons: electrons:

A: Answer  Beta particle have -1 charge and same as the electron

Q: stable

A: Hydrogen consists of three isoptopes namely protium, deuterium and tritium. Protium consists of one…

Q: Krypton consists of several radioactive isotopes, some of which are listed in the following table.…

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Q: Unstable isotopes are not radioactive. O True O False

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Q: What is the zone of stability? What are three decay processes that help an isotope get to the zone…

A: Zone of stability or band of stability is the region in the plot of number of protons versus number…

Q: which extra particle is an isotope cause it to be unstable

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Q: Platinum has a naturally occurring radioisotope, Platinum – 190, with a half – life of 6.50 x 10"…

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Q: 4. How much energy must be supplied to break a single aluminum-27 nucleus into separated protons and…

A: The amount of energy required to break a single nucleus is calculated as follows,

Q: Describe an alpha particle. What nucleus is it equivalent to? •    Describe a beta particle. What…

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Q: Indium-116 is radioactive and has a half life of 14.10 seconds. What percentage of a sample would be…

A: Given, Half life (t1/2) of radioactive Indium-116 = 14.10 s % of a sample would be left after = 29.4…

Q: What is an alpha particle and how is it represented? Answer these same questions for beta particles…

A: Alpha particles carry a positive charge. An alpha particle is made up of two protons and two…

Q: How long does it take for 87.5% of each isotope to decay? Kr-91 Kr-89 min Kr-79 h Kr-81 yr

A: A radioactive isotope's half-life is the time taken for one-half of the isotope to decay. A…

Q: Zirconium-100 emits beta particle as it disintegrates. What is the isotope name after it decays…

A: Beta decay can be defined as the radioactive decay in which a beta particle is emitted from an…

Q: Radioactive nuclides can decay through the release of several differ- ent types of radiation. . ●…

A: The question is about the characteristics of radioactive radiation. We have to list the radioactive…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.