Which of the following is an isotope of Manganese - 55? A) 55Mn B) 55Fe C) 95Mo+2 D) 54Mn

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: Iodine-131 undergoes radioactive decay to form anisotope with 54 protons and 77 neutrons. What…

A: Iodine- 131 has atomic number(Z) of 53. Because in a neutral (uncharged) atom, number of…

Q: Which one of the following statements is not correct?   a. when the atomic number is small, i.e., Z…

A: Atomic nuclei consist of electrically positive protons and electrically neutral neutrons. But…

Q: 2 c Which element has the same protons as the particle emitted from…

A: The alpha decay is occurred in most of the heavier nuiclei which has too high proton to neutron…

Q: 4221Sc      which is the correct choicen for the radioactive isotope listed above a)Its atomic…

A: Scandium is the 21th element in the periodic table . It belongs to the d - block element.

Q: A sizeable uranium deposit was found in northern Canada. When one kilogram of the uranium ore was…

A: Know Initial amount of uranium ore (a) = 1000 g Half life of uranium = 4,510,000,000 yrs Amount of…

Q: What isotope is commonly used to determine thyroid activity and treat diseases of the thyroid?…

A: Radioisotopes are used in various field such as industrial areas, medical field etc. Like I-131 is…

Q: Why is ⁴⁰₂₀Ca the most stable isotope of calcium?

A: The atoms of the same element which have the same atomic number but different mass number are called…

Q: Indicate the number of protons and neutrons in the followingnuclei: (a) 5624Cr, (b) 193Tl, (c)…

A: Atomic number of an atom is equal to the number of protons in it. Atomic number is represented by Z.…

Q: What isotope is commonly used to determine thyroid activity and treat diseases of the thyroid? A) "C…

A: These days, the use of the radioactive element is commonly used in the treatment of disease. In the…

Q: Image a chemist was trying to create a stable isotope with 60 protons and a mass number of 155.…

A: The nucleus consists of protons and protons that are responsible for the overall mass of the atom.…

Q: Choose a letter for the following questions: Nuclei with _____ atomic numbers tend to have a…

A: Fill in the blanks with suitable option--

Q: a. Choose an element with at least three stable nuclides. Element name: b. Write the isotope symbols…

A: isotopes are group of atom which have same atomic number but different mass  number due to…

Q: In radiometric dating, as the parent atom decreases by 50%, the daughter atom increases by 75%. True…

A: Radiometric dating is used to determine the age of rocks.

Q: Gallium-67 (tu2 = 78.25 hours) is used in the medical diagnosis of certain kinds of tumors. If you…

A: Concept introduction: Half life time period: It is the time required to complete the reaction to…

Q: Ses an isotope produced from atmospherc testing of maclear bombs. lf nucler testing was stopped in…

A: Given: Half-life of isotope = 28.5 years. The testing was stopped in 1960. And the analysis is being…

Q: The krypton isotope 36?? 81 is the product of reactions when cosmic rays strike the atmosphere. It…

A: Beta-, β-10 has a net -1 charge and no mass, Hence after β-10 decay, the mass number remains the…

Q: Which one of the following is an isotope of 151Eu? a. 151 Eu3+ b. 153 Eu c. 151 Eu2+ d. 151 Gd

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Q: 2. Use the following isotopes to answer the following 17 F, 88 Sr, 135 Cs, 55 100 Sn, 214 Po 84 38…

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Q: In each pair of isotopes shown, indicate which one you would expect to be radioactive. 20 17 40 45…

A: Radioactivity can be defined as the process in which there is spontaneous emission of radiation in…

Q: Give two examples of common radioisotopes used in medicine. Be sure to write the full name of the…

A: In medical world radioisotopes used in various ways.Radioisotopes can occurred as naturally or…

Q: Which isotope in each pair is more stable? Why?(a) 14055Cs or 13355Cs (b) 7935Br or 7835Br(c) 2812Mg…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Part A When a (\rm^(235}_{~92)UV) nucleus is bombarded by neutrons (\(\rm^(1)(O}n\)) it undergoes a…

A: The given reaction is: U92236 +n01 →BaZA+Kr3694+3n01

Q: ice Questions: 1) In the graph below showing the decay series from 238-U to the largest stable atom…

A:

Q: Atomic structure and Mass r which iso to pee in each pair contains mone neutrons? a chlorine - 35 or…

A: In any element, the number of neutrons is given by, Number of neutrons = Mass number - Number of…

Q: Describe en application of each of the following isotopes: a. techne tium -99m b. Xenon - 133

A: Isotopes mean the atoms of the element containing different mass numbers. There is same number of…

Q: Question 3 What factor determines if an isotope will spontaneously emit radiation? Group of answer…

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

Q: Which of the following species is an isotope of 79Br? A) 40Ar+ B) 79Se c) 79Br- D) 80BR E) 3452-

A: Isotopes :-  Atoms of the same element having same atomic number but different mass numbers are…

Q: 177 189 TI 195 203 TI TI 81 81 81 81

A: For elements with higher atomic number ,neutron to proton ratio must be higher to have higher…

Q: Select all that apply. For each pair of isotopes listed, predict which one is less stable. (a) “Li…

A: The stability of isotopes can be calculated as follows

Q: Gold has one stable isotope, whichis gold-197, with an atomic mass of 196.97amu. A 14k (14-karat)…

A: Given:   Mass of 14k gold =  5.00-g  Gold percentage  = 58.3%  Other metals        = 41.7% To find:…

Q: For numbers 12– 16 , refer to the given choices below. For each pair of isotopes listed, predict…

A: Here are multiple question so I am going to solve a upper three questions .thanks.

Q: 222 39 98 s6 Rn Ca "Tc 20 43-

A:

Q: 12. Which nuclide is written in isotope notation? 59 27CO 18 80 O iron-56 89 39Y

A: Isotopes are the one or two forms of a element which has same atomic number but different mass…

Q: which of the isotopes in each of the following pairs is more abundant. (a) 1°B or "B (b) Li or 'Li…

A:

Q: All changeve Radioactive isotopes of elements can be used in medicine to diagnose and treat disease.…

A: Answer: A radio active isotope has an unstable nucleolus that emits smaller particles.

Q: QUESTION 31 242 When Cm captures an alpha particle, it produces a neutron and which isotope? O 242…

A:

Q: 130TE2 number of protons number of neutrons number of electrons number of nucleons

A: The symbol of the element Tellurium represented as130Te522- In the above symbol 52 is the atomic…

Q: Which of the statements are true of nuclear reactions? a. The number and types of atoms are the…

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: Give two examples of common radiosotopes used in medicine. Be sure to write the full name of the…

A: A) Iodine-131 i.e 13153I or I-131 Isotope is used for thyroid

Q: Fill in the missing parts of the following reactions. (Express your answer as an isotope.) 75 a. 33…

A:

Q: 25Mg an isotope to 25Mg2+ ? Yes or No

A: Answer:  Isotope: isotope is is speics that have same in atomic number and different in mass…

Q: What are the two types of isotopes? * raw and edited compressed and uncompressed stable and unstable…

A: 1. Isotopes are elements having the same atomic number ( no.of protons ) but have different atomic…

Q: Which of the following isotopes is most likely to be unstable?a) 2010 Neb) 7237 Rbc) 168 Od) 115 Be)…

A:

Q: Referring to the figure below, would you except radioactive ? Explain your answer. 39 Ca to be 20…

A: Answer :-  No,3920Ca would not expected to be radioactive.

Q: 4221Sc      which is the correct choice for the radioactive isotope listed above a)Its atomic…

A: The given nuclide is 4221Sc. In this 21 indicates the atomic number. 42 indicates the mass number.…

Q: QUESTION 3 An atom of1/Te has a mass of 116.908630 amu. Calculate the mass defect (deficit) in…

A: ∆m = {Z.mp + (A-Z)mn} – m   Z → atomic number A → mass number Mp → mass of Proton Mn → mass of…

Q: Which of the following isotopes is most likely to be unstable? 28 14SI 46 °22Ti 38 18Ar none of the…

A:

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.