Magic numbers are associated with protons and neutrons in a nucleus. State the magic numbers for protons and neutrons, and give two evidences to support the existence of these magic numbers.

Q: How many neutrons are present in Ne-22?

A: Symbol Ne-22 indicates Neon atom has mass number 22. As we know mass number is the sum of protons…

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: The number of protons in the nuclide 138 Ba Express your answer as an integer.

A: The mass number is the sum of the number of protons and neutrons. The atomic number is equal to the…

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: 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: Why are some atoms radioactive?

A: The radioactive nuclei are unstable and have an excess number of either protons or neutrons in the…

Q: -In deuterium, number of neutrons are А. 3 В. 2 С. 1 D. 0 -In an atom, number of protons and…

A: Atomic number of element is equal to number of proton present in element.

Q: What is the difference between an α particle and a helium atom?

A: The difference between an α particle and a helium atom has to be given,

Q: atomic mass of weapons-grade uranium assuming the percentages are exact?

A:

Q: Uranium-235 isotopes absorb neutrons, causing the U-235 to become unstable and split into two…

A: When a nuclei uranium-235 is hit with a slow-moving neutron, the nuclei absorbs it and temporarily…

Q: Complete and balance the following equation. Plutonium-239 + alpha particle → ________ + neutron…

A:

Q: 2. In a certain fission reaction, U-235 (atomic no 92) reacts with a neutron to form Cesium- 138…

A: Balanced nuclear equation is the equation in which the sum of subscripts as well as sum of…

Q: Write the nuclide notation, including charge if applicable, for atoms with the following…

A: (a)

Q: Use the notation to represent the isotope of silver having a neutron number of 62.

A: Isotopes are the compounds with same atomic number but different mass number. They have same number…

Q: Fill in the missing mass number and atomic number for each of these particles or types of radiation.…

A: Alpha particle is a helium nucleus.  When a nucleus emits alpha particles, it undergoes decrease in…

Q: Define alpha particle, beta particle, and gamma ray.

A: Nuclear reactions are reactions in which one or more nuclei are produced from the collisions between…

Q: Complete the following nuelear equations. Determine the mass number( A), atomic number( Z), and…

A:

Q: Explain what must occur before a radioactive atom stopsto undergo further radioactive decay.

A: Radioactivity is the phenomenon of spontaneous emission of certain active rays by certain nuclides.…

Q: What do we call the nuclides having same mass number? [A] Isotopes [B] Isobars [C] Isotones [D] Such…

A: Each atom can be divided into three sub-atomic species: Neutrons, Protons and Electrons. The atomic…

Q: The atomic masses of hydrogen-2 (deuterium), helium-4, and lithium-6 are 2.014102 amu, 4.002602 amu,…

A: Atomic masses hydrogen, H = 2.014102 amu

Q: Discuss the idea of radioactive neutron source giving some examples.

A: answer- Neutrons may be emitted from nuclear fusion or nuclear fission, or from other nuclear…

Q: Characterize alpha, beta, and gamma radiation in terms of mass and charge.

A: Radioactive elements consist unstable nuclei which on striking with an electromagnetic radiation…

Q: Who presented the idea of neutron particle in nucleus? Frederic Soddy Ernest Rutherford Niels Bohr O…

A:

Q: protons and neutrons in a nuclear change is correct? a-The number of protons in the number of…

A: In balanced nuclear reaction,  Number of protons and mass number in reactant side is equal to number…

Q: Which of the following particles will NOT undergo deflection in a magnetic field. A Alpha particles…

A: The particle having charge, deflected in the magnetic field, the positively charged particle…

Q: What is a neutron?

A: Number of neutrons in an atom = mass number - atomic number

Q: What is the mass number of zinc-68?

A: The Answer to the the following question is given as:

Q: Calcium-45 has too many neutrons compared to the number of protons. Because of this, it will most…

A:

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: Write the nuclear symbols of the three isotopes of an element with an atomic number of 8 in which…

A: We have to write Atomic symbol for three isotopes of atomic number 8.

Q: Above what atomic number are there no stable isotopes of any element? 20 89 83 92 40

A: Atomic number 92

Q: What caused the deflection of the alpha particles in Rutherford’s gold foil experiment?

A: What caused the deflection of the alpha particles in Rutherford’s gold foil experiment?

Q: the mass of a single atom of iron-56 is 55.93494 amu. Why is this number different from the mass of…

A: Actual mass of nucleus is always lesser than the total mass of it's constituting element proton and…

Q: What is the nuclear symbol for a radioactive isotope of copper with a mass number of 60?

A: The atomic number of copper is 29 and the mass number of radioactive isotope of copper is given as…

Q: 239 142 Indicate the number of protons and neutrons in the following nuclei: (a) 94 -Ри, (b) Ba, (c)…

A:

Q: Explain what part of an atom undergoes change during radioactive decay.

A: Explained as follows

Q: How do you compare the size of an atom to the size of its nucleus (make numerical comparison)?

A: An atom is composed of nucleus and extranuclear portion. Nucleus contains protons and neutrons while…

Q: An beta particle is a(n). O photon O electron O helium nucleus O hydrogen nucleus

A: A beta particle is an electron.  Charge and mass of beta particle are equal to that of electron.

Q: Negatively charged particles of radiation emitted from the decay of radioactive substances are known…

A: A) Protons : It is one of the fundamental particle of an atom. It is basically  positively charged…

Q: Fill in the information missing from this table. nuclide protons neutrons 73 Ge 32 56 74 60 145

A: In any nuclide, the number written on the bottom is the atomic number and the number written on the…

Q: Consider to isotopes Fe-54 and Fe-56. a. write the nuclear symbol for both isotopes. b. how do…

A: The given isotopes of iron are - Fe-54 and Fe-56 In the given information Fe represent the atomic…

Q: 1. Indicate the number of protons and neutrons in the following nuclei: (a) Mn, (b) 201Hg, (c)…

A:

Q: Fill in the information missing from this table. nuclide protons neutrons 28 14 14 Si 83 209 58 80 ロ

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: mass number of 319 possesses _____________ nucleons.

A: Number of Neutrons(N) = 137 Mass number(A) = 319 So, Number of protons(P) = A - N  = 319 - 137 = 182

Q: Which type of radioactive decay will decrease the atomic number by one and release two subatomic…

A: The property of a nucleus emitting α, β and γ rays is known as radioactivity and the substance…

Q: Barium -142 would have how many neutrons in its nucleus

A:

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.