Radioisotopes are used in   LEDs   some food preservation processes   some glow-in-the-dark paints   many electronic devices

Q: Calculate the mass change in grams bf the copper and nickel electrodes. mass change of copper…

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Q: What mass in grams of Na2S2O3 is needed to dissolve 6.3 g of AgBr in a 1.0 L solution if Ksp for…

A: The given data contains, mass of Na2S2O3 = 6.3 g. Volume = 1.0 L Ksp of AgBr = 3.3×10-13 Kf of…

Q: Which of the following are antimicrobial halogens?(a) Iodine (d) Iodophores (c) Bromine(d) Chlorine…

A: Halogens It consists of group 17 elements that are nonmetals. They form anions by accepting…

Q: A period 3 element with an equal number of nucleons

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Q: Calculate the packing fraction, mass defect and energy released in the formation of the argon atom.…

A: The packing fraction, mass defect and energy released in the formation of the argon atom are to be…

Q: Give reason for each of the following : (a) Molten alumina is a poor conductor of electricity. (b)…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Despite the similarities in the chemical reactivity of elements in the lanthanide series, their…

A: The Oddo-Harkins rule, according to which an element with odd number of proton in the nucleus has a…

Q: (i) State the Pauling First Rule for predicting the pKa of oxoacid. Illustrate your answer with an…

A: Ans(a)- Pauling first rule says tha pKa= 8-5p ,where p= number of M=O   (b) pKa order HClO3 >…

Q: How are Deuterium and tritium are useful/

A: Deuterium and tritium both are isotopes of element hydrogen. Furthermore, deuterium has atomic mass…

Q: Identify if the cosmic phase (bigbang, stellar formation, stellar explosion) in which the reaction…

A: Big Bang nucleosynthesis refers to the production of nuclei other than H-1, the normal, light…

Q: Which types of magnetic materials are used to make permanent magnets?

A: There are various types of the magnetic materials such as paramagnetic material, diamagnetic…

Q: Consider the balanced reaction 7 A + 6 B → 3 C + 6 D. Consider the balanced reaction 9 A + 6 B → 3…

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Q: 6. According to paragraph 5, "trace amounts of plutonium and neptunium have been found naturally as…

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

Q: The radioisotope 9037RB will most likely decay through alpha decay positron emission electron…

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Q: A karat is a measure of gold purity. By definition, 24-karat gold is pure gold. However, gold is…

A: 5) Given: Mass of ring = 6 g. And mass percent of gold in ring = 90 %.

Q: electroplating

A: radioisotopes get split into smaller atoms

Q: Draw atomic depictions for(a) ⁴⁸₂₂Ti; (b) ⁷⁹₃₄Se; (c) ¹¹₅B.

A: The structure of atom shows that it contains electrons, protons and neutrons. Neutrons and protons…

Q: A chemical reaction occurs resulting in a flame, what causes the flame?   Acceleration of protons…

A: A plasma is an ionized gas that is reflective to low frequency electromagnetic waves like radio…

Q: QUESTION 3 For each of the following, give the most specific classification according to type of…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Which one of these elements is a transition element? Select one: a. Pb b. Sr c. H d. Fe e. As

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Q: Predict its decay pathway

A: Atomic number of Strontium (Sr) is 38

Q: which one of the following is an ionization technique? MALDI or ESI

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Q: Chemically active surfaces are seen on alumina-containing zeolites. Interpret this statement.

A: Answer -

Q: 21 20 JgVI Jaåll :The application of (N-8) rule for group IV elements indicate That silicon is…

A: Octet Rule: Octet rule states that an atom which has eight (8) electrons in its valence shell is…

Q: Place the following in order of  increasing atomic radius.  Rb Be Ca     Rb < Ca < Be     Rb < Be…

A: The atomic radius of items generally increases from top to bottom within a group.

Q: Using the interactive nuclide chart, predict the most probable decay series of the following [take…

A: Protactinium has 29 radioisotopes. Almost all naturally occurring protactinium is 231Pa. It has a…

Q: half-life of 4.536 days

A: Given data are as follows: Calcium-47 half-life = 4.536 days Initial weight of Calcium-47 = 250g

Q: Using Wolfram Alpha (http://www.wolframalpha.com/) orsome other reference, determine which of these…

A: Now from the given reference, we have to which of the following elements would melt at a temperature…

Q: can someone explain question 7？ Why As3- become a Ar？？？

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Q: 1. If you turn on the burner on a gas stove under a pan of cold water, energy moves from the burner…

A: This mode of transfer of energy is called conduction because there is direct supply of heat between…

Q: Explain why are alpha carbons more acidic than other sp3 carbons ? Define any reasons for this ?

A: SP3 hybridized carbon: In this hybridization Carbon is attached to 4 different group or atom with…

Q: Whether or not the process is observed in Nature, which of the following could account for the…

A: The transformation of carbon-10 to boron-10 occurs in two way:

Q: What metallic element is used to produce power from nuclear fusion? Select one: A.Lithium B.Copper…

A: -&gt;Fusion power is power generation that would generate electricity by using heat from nuclear…

Q: Why do the transition elements (Z = 21 to 30) all have similar chemical properties?

A: There are 118 elements present in the periodic table. The elements of group 1 and 2 which are placed…

Q: Which of the following is an example of an object that contains an electromagnet? a an umbrella a…

A: An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.…

Q: Explain nuclear fission and the functions of rod in nuclear power plants.

A: When a nucleus of an atom is undergoing some change, its study is called nuclear chemistry. Nuclear…

Q: Which of the following statements is true about actinoides are all synthetic elements O include…

A: Actinoids series consists of 15 metallic chemical elements with atomic number from 89 to 103.

Q: For pH = 6.00, calculate the alpha one (a1) in an aqueous solution of citric acid. (Ka1 = 7.45 x…

A: PH of solution is 6. K1,k2,k3 are dissociation constant of citric acid.

Q: Based on the band of stability, what is the approximate neutron to proton ratio for vanadium (atomic…

A: The stability of an atom is determined by the ratio of the number of neutrons to the number of…

Q: Which of the following is a limitation to radiometric dating? Not enough parent and/or daughter…

A: There are some statements which are : 1) Not enough parent and/or daughter materials to measure. 2)…

Q: why are noble gases so inert(unreactive)?

A: Noble gases are the elements that are present in the group 18 of the periodic table. The name of the…

Q: How is technetium-99 used in medical diagnosis

A: Radioactive isotopes are also known as radioisotopes are the atoms that possess unstable…

Q: What can be a solution for Black Lives Matter?

A: Given Can be a solution for Black Lives Matter

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…