Which of the following describes an atom that is not an isotope of the other two? And why a)14p, 14e, 15n b)15p, 15e, 14n c) 15p, 15e, 15n

Q: The radioisotope Cf-251 will decay through Periodic Table of the Elements hydrogen H 13 14 15 16…

A: Gamma decay will be there .

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A: The enthalpy change of the reaction is determined as follows:

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: Which of the following contains two species which have the same mass number?   14C, 14N   12C, 13C…

A: The same mass number means the same nucleons.

Q: 12. Give two examples of common radioisotopes used in medicine. Be sure to write the full name of…

A: We are asked to write about isotopes that can be used in medicines

Q: Sodium only has one naturally occuring isotope, 23Na, with a relative atomic mass of 22.9898 u. A…

A: Given, 22Na has a relative atomic mass of 21.9944 u. 23Na, with a relative atomic mass of 22.9898 u.…

Q: 3. Explain the statement , Matter and radiation have “dual nature.”

A: The matter is that substance which has its own mass and occupies some space.Light or radiation are…

Q: Which Greek philosopher argued that matter is continuous in 350 B.C?

A: The Greek philosopher, who argued that matter is continuous in 350 B.C has to be stated.

Q: Match the Beta decay products of the following elements: Drag the boxes to match the answers 76Os…

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Q: Only two isotopes of Sb (antimony, Z=51) are stable. Pick the most likely stable isotope from the…

A:

Q: f you look at Gallium's atomic mass on the periodic table, which isotope is more abundant in nature:…

A: Gallium belongs to IIIA group in the periodic table. There are two isotopes of Gallium that occurs…

Q: Which of the following elements would you predict to be radioactive?   Select one or more: a.…

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Q: Q1) Both 60Co and 137Cs emit gamma rays. Which source had the least energetic gamma ray? Justify…

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Q: The element neptunium (Np) has a radioactive isotope called 237N.. 237NP can undergo alpha deca to…

A: Given reaction: N237p → ? + H4e We have to find the missing atom.

Q: What is the atomic mass of oxygen-16 (15.9949 Amy) at 99.757%

A:

Q: Which of the following statements is not correct about the stability of nucleus? a. The stable…

A: all elements with more than 83 protons such as uranium, radium, and polonium have unstable nuclei.…

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

A:

Q: Ch. 7-2 pg. 236 pp#1-2: Average Atomic Mass Find avg at mass Ga if 60.00% has mass 68.926 amu &…

A:

Q: In another process in which U undergoes neutron bombardment, the following reaction occurs: 92 235…

A: Given:

Q: Relative abundance and atomic mass of the naturally occurring isotopes of hafnium: 5% - 176 amu 19%…

A:

Q: Many hospitals use radioisotopes for diagnosis and treatment or in palliative care. Three…

A: 25. Given that : We have to give the proper symbols of the following elements along with their…

Q: Which is more stable? Which has a larger mass? 1H + a neutron 1H + a neutron O 2H O 24 Examine the…

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Q: change as the volume 5. Which of the options below share the same exte A. 50 kg of concrete. 50 m³…

A: In structure of atom, there is nucleus present inside the atom and electrons are revolving around…

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A: Dear student, we answer one question in one post. So, we are providing answer for Q 26. Please…

Q: hi, can you solve this? A radioactive atom x turns into a stable y atom by emitting a neutron and…

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

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Q: Beta Decay tlectron IL a changed man! During Beta decay what is happening to the nucleus to try and…

A: Beta decay is a type of radioactive decay.

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: Select all of the following that are isotopes of 28Si.  Group of answer choices 29Si An atom with…

A: Concept introduction. Isotopes are the substance having same atomic number but different atomic…

Q: This question combines info from the chart AND your common sense (what you know about the world you…

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Q: (1) The radioactive isotope iodine-131 is used in medical imaging as indicated on the table above.…

A: The table details the types of radioactive decays by different isotopes.

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: An element (M) has two stable isotopes and has an average atomic mass of 85.1 au. One of the 87M,…

A: Given that,  Average atomic mass of element Mm = 85.1 au Atomic mass of one isotope 87Mm with 27.8%…

Q: The black squares represent stable isotopes in this plot of # neutrons vs # protons. What is the…

A: In an atom, the nucleus will be stable if it contains the given ratio or number of neutrons to the…

Q: Select from below the two statements that are true. O An atom is accurately described as a small…

A: An atom is considered as a fundamental particle having neutrons and protons inside the nucleus at…

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: der G Genetic drift-Wikip.. A Algebra Fouhdatio. What belongs in place of the question mark? Isotope…

A:

Q: From the following nuclei identify and group the nuclei that are isotopes, isotones or isobars:…

A: Isotopes are elements with same number atomic number but different mass number. Isobars are element…

Q: How do different isotopes of nitrogen behave similarly or differently from each other in a chemical…

A: Isotopes are elements having same number of protons but different number of neutrons.

Q: 2. What is the nuclei or particle in the blank of the condensed form of * 24°Cf ( 15N, 4n)_. [A]…

A: in nuclear reaction Mass number are  conserved. That means  total mass number on reactent side is…

Q: What will be the systematic name and atomic symbol given to a. element 202 b. element 136

A: We are to write systematic names and aromic symbol for elements 202 and 136.

Q: Many hospitals use radioisotopes for diagnosis and treatment or in palliative care. Three…

A: An isotope is an element that has the same atomic number but with different atomic masses. An…

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

A:

Q: Draw the nuclear symbols for the three isotopes of carbon. Besides the symbol, what is common to all…

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Q: 2. (a) Determine the mass number of a nucleus whose radius is approximately equal to two-thirds the…

A: Radius of new element is two third of the radius of Ra-230. Here, we have to find the name of new…

Q: Give the nuclear symbol for the isotope of gallium, Ga, that contains 40 neutrons per atom. Replace…

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Q: A radiologist is preparing a radioactive isotope of iodine-131 to examine the thyroid gland if…

A:

Q: A hypothetical element has two stable isotopes: one isotope has a mass of 106.9051 amu with an…

A: We have to calculate the average atomic mass of element.

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.…

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.