The stability of any nucleus is determined by the difference between the repulsion and the short- range attraction. The nucleus disintegrates if repulsion prevails. The stable nuclei of the heavier elements contain approximately equal number of neutrons and protons. Nuclei with even numbers of both protons and neutrons are generally more stable than those with odd numbers of these particles. All isotopes of the elements with atomic numbers higher than 83 are not radioactive.

Q: Give a brief summary of what radioactive decay is, and give an example.

A: Given : Radioactive decay  To find : Summary and example  Solution : Radioactive decay is the…

Q: What is radioactive decay and give one example of a radioactive atom used in medicine?

A: Radioactive decay:It is known as the process by which an unstable atomic nucleus loses its energy by…

Q: What is a quark?

A:

Q: Explain how you can predict whether or not an isotope is likely to be stable ifyou know its number…

A: An atom consists of two major parts i.e. re nucleus and electrons. A nucleus is concentrated at the…

Q: understanding

A: Dear student I have given answer to your question in the image format.

Q: Which pair of symbols represents nuclei with the same number of neutrons? 56Co and 5Co 5' Fe and 5Ni…

A: An element is composed of mainly three constituents i.e. neutrons, protons, and electrons. Out of…

Q: Given the following diagram, indicate the nucleus using atomic notation. Express your answer as a…

A: The given element contains: Neutrons, n = 30 Protons, p+ = 25 Electrons, e- = 25 Since the element…

Q: Which element has the most tightly bound nucleus? is the correct answer. (No nuclear reactions can…

A: The most tightly bound nucleus can be observed from Nuclear Binding Energy curve. The curve predicts…

Q: Alpha decay alters the atomic number of the parent element. O True O False

A: Correct Ans - TRUE

Q: What is another method to track the extent of isotopic decay.

A: Given: Extent of isotopic decay To find: Method that is used to track isotopic decay.  Solution:…

Q: Which of the following particles would attract each other? Would repel each other? Rank the…

A: Opposite charges attract each other while similar charges repel each other. Therefore, electrons and…

Q: What are the nuclear radiations (name them)?

A: The forms of elementary particles or photons that are emitted from the nucleus of an atom during a…

Q: The nuclear glue that helps bind a nucleus is the? A. Alpha B. Electron C. Neutron D. Proton E. Beta

A:

Q: 2. Use the following isotopes to answer the following 17 F, 135 Cs, 55 214 Po 84 write the nuclear…

A: Nuclear decay reaction: Also called as, Radioactive decay. It is reaction in which Radioactive…

Q: Indicate the number of: protons neutrons and electrons for 204pb nuclide.

A: Here we have to find the number of protons, neutrons and elctrons present in 204Pb nuclide isotope.…

Q: The radioactive element francium undergoes a series of nuclear decays, eventually forming a stable…

A: Alpha DecayXZA - H24e  → YZ-2A-4          ↓         ∝Beta decaye.g C614   - e-10    → N714

Q: The type of nuclear decay an unstable nucleus will undergo depends on its ratio of neutrons to…

A: Given  For Co - 65    n/p     = 1.41  Changes if this ratio is reduced = ?

Q: An positively charged particle with the same mass as an electron emitted as nuclear radiation is…

A: we need to tell which particle is positively charged and has mass equal to mass of electron

Q: In-120 undergoes beta decay. What is the product nucleus? Enter your answer using the same format,…

A: Beta decay is loss of electron. In this process product nucleus has same atomic mass but its atomic…

Q: Based on the evidence shown, what is the atomic number of thorium? A B CO U Parent nucleus…

A:

Q: Which particle, if lost from the nucleus, will not result in a change in the atomic mass number?

A: Which particle, if lost from the nucleus, will not result in a change in the atomic mass number?

Q: Uranium-238 emits an alpha particle. The new nucleus that forms has a mass number of and an atomic…

A: Atomic number of Uranium = 92 the alpha particle is H24e.

Q: Factors determining nuclear stability Answer Bank physical state of the element pressure on the…

A: Answer given as follows

Q: Neon and magnesium each have three stable isotopes, whilesodium and aluminum each have only one.…

A: When the various atoms are formed from same element, the atomic number remains the same with…

Q: Describe how variations in an atomic nucleus accountfor its physical properties

A: A physical property is any property that is measurable, whose value describes a state of a physical…

Q: Neon and magnesium each has three stable isotopes while sodium and aluminum each has only one.…

A: Neon and magnesium each have three stable isotopes. Sodium and aluminum each have only one isotope.…

Q: Classify each nucleus as stable or unstable.

A: If the given isotopes has been found with zero natural abundance then they are considered to be…

Q: Why is gamma radiation generally not included when writing nuclear reactions?

A: In the writing of equation of nuclear reactions, Elements and particles only we can able to indicate…

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.