Find the number of electron and neutrons in the following:  195Pt+2

Q: prove %23 ED - EH KH e KBT

A: Here we are assuming R-H and R-D where R is a group/atom that is much heavier than H or D. Arrhenius…

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: 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: What is the primary factor that determines whether an nucleus is stable or unstable?

A: The nucleus is the small region that lies at the center of an atom. It is discovered in 1911 by…

Q: b Pb undergoes four decay reactions: B, B, a, B. Step 1. Pb undergoes B decay to give Bi In the…

A: Given: Pb undergoes four decay reactions: β, β, α, β In the first step, Pb82214 undergoes β decay to…

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: How much energy is required to remove (a.) a neutron, (b.) a proton, from 1680 ? Explain the…

A: The energy required to remove a proton and a neutron is calculated using the formula E=mc2

Q: Gold-198 is used in the diagnosis of liver problems. If you begin with 2.8 milligrams of this gold…

A: Given : Half - life = 2.69 days Initial amount = 2.8 mg Time = 10.8 days.

Q: 227 28 (b) 227 28 Si 14 Explain your choice. O Its atomic number is greater than 83. O Its atomic…

A: Isotopes are the atoms of the same element which has same atomic number but different mass number.…

Q: We must first calculate the mass defect (Am) for 56Fe. Since atomic masses (which include the…

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Q: Salance the nuclear equation and identify the missing symbol. 235U →? + Cs +4,n O 148 Xe 54 151 134…

A: Balance the nuclear equation and identify the missing symbol---

Q: Reset Help 8 1. An atom of aluminum with a mass number of 24 and an atomic number of 13 has a total…

A: For an element,                              Atomic number  = Number of electrons  =  Number of…

Q: Given the following nuclear reaction: 223Fr →e + 4 X 87 Column A 2. 3. 4. What is the atomic mass of…

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Q: 1. Indi cate of protons and nevutrons in the following nuclei: the number a) 5 Mn 22

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Q: Strontium-90 is radioactive and has a half life of 28.8 years. How much of a 9.70 mg sample would be…

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Q: Discuss the reasons why 226Ra (Z=88) is radioactive element while 56Fe (Z=26) is a stable element.…

A: Radioactive elements are composed of atoms in which their nuclei are unstable and losses their…

Q: 1. Which isotope in each of the following pairs should be more stable? b) P or P a) Ca or Ca 32 15…

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Q: The mass defect for the reaction shown below is amu. The atomic masses are 3He (3.0160), 4He…

A: The considered reaction is, 2He23→He24 + 2 H11

Q: 5. The missing particle (? ) in the following reaction: 23994PU + 42HE 10n + is: a) 242 Am 242 Cm b)…

A: We need to find the missing particle (X) in reaction 239 94 Pu + 4 2 He --> 10 n + X

Q: 10. Which of the following correctly balances the nuclear equation below? 135 531 1B+ 135 saXe 134…

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Q: What is the product forms from the decay equation below? * 14 C --> 0,e + 145B 14 b. 14C 2He d. а.…

A: According to question answer must be 147N. So, whatever solution solution is provided by us is it…

Q: What fraction of the 235U (t1/2=7.0x10^8yr) created when  Earth was formed would remain after…

A: Calculation of decay constant, K: k=0.693t1/2=0.6937.0×108 yr=9.9×10-10 yr-1

Q: The fuel for Nuclear Reactors involves the decay of Uranium-235. 235U + 'n ®93Kr + 140Ba R + 3 'n…

A: Consider the fuel Uranium-235: Calculation of number of protons and number of neutrons: The number…

Q: 234/91 Pa------> _________ + 234/92 U?

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Q: 30³ Bi decays by electron capture. What is the product? 83 a. 202 Bi 83 b. 199 T1 C. O 203 pb 82 d.…

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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: If a source of Cs-137 (T1/2  = 30.4 y)  can be safely managed if it contains less than 0.01 Ci, a)…

A: The activity for radioactivity isotope is given as: At=Aoe-λtwhere,At is the activity after time…

Q: 13. Most nuclear reactions are controlled by substances that are good at catching neutrons. Which…

A: We know that Nuclear reaction is control by catching the neutrons , using the control rods.

Q: An atom of 186Ta has a mass of 185.958540 amu. Calculate the mass defect (deficit) in amu/atom.   a.…

A: The difference between the actual atomic mass and the predicted mass estimated by adding the mass of…

Q: 180m TI 150 TI + ? 173 173 Express your answer as a nuclear symbol.

A: According to the question, We have the nuclear reaction:  180173Tl   ---->  180173Tl

Q: 2. In each pair of isotopes, indicate which one you would expect to be radioactive. Support your…

A: a. 42Mo95 : No. of protons = 42(even). No. of neutrons = 95-42 = 53(odd).  43Tc92 : No. of protons =…

Q: 8. True or False (use your periodic table/data sheet when appropriate) a. A Geiger counter detects…

A: (a) A Geiger counter, measured the radiation when the radiation collides with gas molecules it…

Q: sodium-24 is a radioisotope used to measure blood circulation time. Calculate the mass (in…

A: Original mass of Na-24 sample = 26.6 mg Half life = 4 hours Mass of sample after 1 day and 4 hours…

Q: mitted 130 120 110 100 90 80 70 60 50 • Stable Radioactive 40 30 20 10 10 20 30 40 50 60 70 80 90…

A: N/Z is the ratio of no of neutrons to no of protons of an atom. It signifies which atoms will…

Q: Which of the following is the nuclide with the highest atomic number ever created? Select the…

A: Oganesson is the temporary name of a retracted chemical element in the periodic table.  Og is the…

Q: Find the nuclear symbol for Chromium-57.

A: Given  Element = Chromium - 57  Nuclear symbol = ?

Q: Write the number of protons for K, K, K. 19 19 19 Enter your answers separated by commas. 3K. K. K:…

A: Atomic number of an atom is written as a subscript on the symbol of element. It can never be same…

Q: 8:44 1 ul LTE NUCLEAR DECAY.docx NUCLEAR DECAY 14 14 C=> Ge N 1. + 7 top numbers total = top total…

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Q: Carbon dating can be used to get a measurement of the age of a carbon-containing sample. (Scientists…

A: The number of radioactive particle v/s time data given is,

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: 1. Balance the following nuclear reactions. 212 84 Po > He 78 33 As in

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

Q: 13. What is the missing particle? 2Am + He → 2¿n + B. 2Bk 243 95 A. 2Bk 244 97 245 97 C. 2Bk 246 97…

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Q: Due All changes s 3. Most nuclear reactions are controlled by substances that are good at catching…

A: Nuclear reactions such as nuclear fission need certain control over fission rate, and control rods…

Q: Which of the following atomic isotopes contains the fewest neutrons? Select one: a. 30Si b. 27Al c.…

A: The number of neutrons is the difference between the mass number and atomic number.   So , to get…

Q: I3 write a hypothesis for how you think that decay constant is related to the concentration of the…

A: The decay constant(λ) regulates the rate at which the total number of nuclei declines. Unknown…

Q: 218 Po→218 At +X 84 1K-Ar +Xn→_{ß+X 210 Bi→206 T1+X 83 81 ip

A: The emissions of the most common forms of spontaneous radioactive decay are the Alpha particle,the…

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.