Disintegrate or decay mean that radioactive elements disappear as they emit radiation and are changed into other elements. True O False

Q: Nuclear Equations

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Q: For each pair of elements listed, predict which one has more stable isotopes. b) For Se b) Co or Ni…

A: (a) F or Se : Atomic number of F = 9, so it has 9 protons, and its mass number is 19. Atomic number…

Q: 76 CHAPTER 2 Atoms, lons, 2.6 Write nuclide symbols of the form "X for th represented in Figure…

A: Every nuclide has an atomic number (Z), the number of protons with inside the nucleus, and a mass…

Q: List the name and the atomic number of each element. (a) Mn(b) Ag(c) Au(d) Pb(e) S

A: In the periodic table, elements are arranged based on their similarities in properties. Each element…

Q: Element X has an unstable nucleus due to an over-abundance of neutrons. Which of the following is…

A: Heavy nuclei are unstable because of their heavy mass and they emit radiations in order to reduce…

Q: Which of the following best describes how the atomic number changes when a nucleus captures an…

A: Answer

Q: A sample of iron weighing 15.0 g was heated with potassium chlorate (KCIO3) in an evacuated…

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Q: Which of the following is considered to be radioactive isotope of hydrogen? Also give the names of…

A: Amongst the three isotopes of hydrogen, 1H is the most stable isotope with abundance of 99.98%. 2H…

Q: The cleanup of threat of toxic nuclear isotopes can be permanently eliminated by simply storing it…

A: Toxic nuclear isotopes cannot be permanently eliminated. This is temporary process.

Q: Use nuclear symbols to write a balanced nuclear equation for the formation of actinium−227 through…

A: Formation of Actinium-227 through alpha decay.

Q: Is there another method to determine lead in shells without needing digestion? Explain the principle…

A: A question based on analytical process that is to be accomplished.

Q: Alpha particles are deflected along hyperbolic paths when they are directed towards the nuclei of…

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Q: TRUE OR FALSE 1. The age of fossils can be traced using isotopes C12 and C14 called Carbon dating…

A: Radiocarbon dating is based on the simple principle that all living things absorb carbon from the…

Q: law of conservation of mass

A: According to law of conservation of mass, in a chemical reaction the mass of reactions are always…

Q: Ti-48 is produced by alpha decay

A: Formula of α particle is He24. Hence release of He24 indicates loss of mass number by 4 unit and…

Q: The density of ground uranium in a particular contaminated field is 0.02 mg/m3. A loader with a 24…

A: Solution Given data :- density of uranium in the field = d = 0.02 mg/m3 volume of bucket = V = 24 m3…

Q: Y What element is represented in question 33? O Sodium O Boron O Carbon O Sulfur

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Q: One atom has 15 protons and 16 neutrons in its nucleus, with 15 electrons traveling around it.…

A: Isotopes are the elements which have same atomic numbers but they have different mass number  Ex.…

Q: 28. Radioactive decay is a process in which an unstable changes energy states and emits radiation.…

A: A material containing and stable nuclei is considered radioactive .Three of the most common type of…

Q: Complete the following chemical equations.a. Na(s) + H 2 O(l) →b. K(s) + H 2 O(l) →

A: The complete chemical equation has to be given.

Q: Electron capture is associated with conversion of neutron to proton O conversion of proton to…

A: Electron capture leads to production of nuclei/atom with decrease in atomic no. and no change in…

Q: Choose the best definition of an isotope from this list A nucleus of an element which is unstable…

A: The isotope of an element is the same atomic number with the difference in mass numbers. The atomic…

Q: The Murchison meteorite that was found in Australia in 1969 is important to scientists because it…

A: The Murchison shooting star is a shooting star that fell in Australia in 1969 close to Murchison,…

Q: What is relative abundance

A: Given question is :  What is relative abundance = ?

Q: Write the nuclear equation for the nuclear reaction in which a nuclei undergoes B decay and changes…

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

Q: Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of…

A: Coal contains carbon and other elements. Coal when burnt with oxygen then formation of carbon…

Q: Which Isotope has the same number of neurons as phosphorus-31

A: Isotopes are the elements having same atomic number but different mass number i.e. different number…

Q: 2. Balance the nuclear reaction that allows for radiocarbon dating is the continual formation of…

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Q: Below is a list of properties of elements. Classify them as a property of metals, nonmetals, or…

A: Properties of Metals : Conduct heat, shiny, solids at room temperature, ductile, high melting point,…

Q: X-rays damage biological molecules. O True O False

A: X-ray very harmful rayes which break the bond of molecule and because of this malufunctions in cell…

Q: a) How many protons does Promethium-145 have? b). How many neutrons does Promethium-145 have?…

A: Given :  Mass number of Promethium = 145  Atomic number of Promethium = 61  Half life of Promethium…

Q: What proportion of the 14C present in Otzi's body when he died is still there today? When he died,…

A: The half-life time of carbon-14 is about 5,730 years.  Thus a sample that had 1/4 of its original…

Q: Write the daughter nucleus product in the following nuclear processes: Beta emission of…

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Q: why

A: Given,Mass of the sample = 1.0 g1.0 amu = 1.0 g/molFrom the mass spectrum given, the sample have…

Q: e polonium-214 ndergo vest nossible coefficients.

A: In the nuclear reaction,  Mass number and atomic number is same in both sides

Q: Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of…

A: When coal burn there is a chemical reaction takes place. It is a chemical reaction. It's best…

Q: nuclear equations

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Q: nuclear equation for the positron emission from the Thallium-201 radioisotope.

A: Positron emssion or beta plus decay is subtype of radioactive decay in which a proton inside…

Q: Determine the mass percentage of F in C6H11OF3. A. 36.50% B. 37.33% C. 39.54% D. 40.67% E. none of…

A: Mass of one mole of Carbon, Hydrogen, Oxygen, and Fluorine are calculated as follows,

Q: 33 - Which of the elements has similar chemical properties with sulfur (S) element? O A) Xe O B) Rb…

A: The element which has a similar chemical properties with the Sulfur element to be determined.

Q: What is nuclear chemistry and important of nuclear chemistry

A: Radiocarbon dating ,nuclear reactor,nuclear weapons can be developed with help of nuclear chemistry.

Q: What are the elements formed in big bang nucleosynthesis? 2. What are the elements formed in Stellar…

A: The process of formation of the new nuclei from already existing ones is called nucleosynthesis. It…

Q: All changes saved 30. Sodium metal is placed in a beaker of water. When the two substances make…

A: Physical change: In a physical change the physical state of matter changes. In this change different…

Q: 0.360 g sample of an organic compound containing carbon, hydrogen, and oxygen was burnt in excess…

A: Mass of the compound = 0.360 g  Mass of oxygen + Mass of Hydrogen + Mass of Carbon = 0.360 g

Q: Consider a sample that consists of three green spheres and one blue sphere. the green mass is 3.00g…

A: Given : Mass of green spheres = 3g Mass of blue sphere = 1g

Q: Strontium-90 is a particularly dangerous product of nuclear fission because it is chemically similar…

A: Since you have posted more than one question, we will solve only first question for you. If you want…

d-Block Elements

According to the modern form of periodic table, 118 elements are present which are subdivided as four blocks, namely, s, p, d and f-block elements based on the entry of the valence electron or last electron into which orbital.