When a β+ is emitted from an unstable nucleus, True/False-  the atomic number of the nucleus does not change.  True/False-  a neutron is ejected from the nucleus.  True/False-  a proton is ejected from the nucleus.  True/False-  a proton is transformed to a neutron.  True/False-  a neutron is transformed to a proton.  True/False-  the atomic number of the nucleus increases by 1.  True/False-  the atomic number of the nucleus decreases by 1.

Q: A shipment contains 800 Curries of Iodine-125 (T1/2  =  60 days)  a) How much will be left in 11…

A: Initial activitiy is given to be equal to 800 Ci.

Q: Al (s) WFe:0s (s) Fe(s) + %Al:0s(s) AH - 212.25k) (b) The mass of the Al need to produce 1 k of…

A: Answer;- This question is answered by using the simple concept of stoichiometry which involves the…

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A: Given information,    80195Hg    1330Hg    80206Hg    3694Kr

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A: Nuclear decay When a nucleus of an atom is unstable it gives out energy in the form of radiation…

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A: Given statement is : The age of fossils can be trace by using isotopes c12 and c14 called carbon…

Q: Which pair of symbols represents nuclei with the same number of neutrons? 56Co and 5Co 5' Fe and 5Ni…

A: An element is composed of mainly three constituents i.e. neutrons, protons, and electrons. Out of…

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: Which of the following statements is true about nuclear fusion? A. Nuclear fusion occurs when atoms…

A: Here given statement about nuclear fusion .we are asked to find the true option for nuclear fusion.

Q: Q )define :  1- nuclide radii  2- neutron structure 3- nuclear excited state 4- deuterium

A: The Defination of the following  are as follows

Q: Alpha ... s Beta .... Gemma .... . Aluminum Teed Lead Which of the following BEST describes Gamma…

A: The correct option is (a): An atom shoots off a photon to release energy and stabilize it's nucleus.

Q: Alpha I'n froe! Decay withing During Alpha decay what is happening to the nucleus in order to try…

A: In alpha decay, the atomic nucleus shoots an alpha particle and changes into a new nucleus. The…

Q: 206 §Hg a. b. 18H9 30 195 §Hg 80 90 С. d. Kr

A: AZX here, X represents the element.  A represents the atomic mass which is sum of number of protons…

Q: Give the nuclear symbol for the isotope of phosphorus for which A = 31 ?

A: The element given is phosphorous with mass number as 31.

Q: Why is 3/2 He stable, but 2/2 He has never been detected?

A: ANSWER

Q: Balance this nuclear reaction by supplying the missing nucleus. Replace each question mark with an…

A: Balance the atomic no. and atomic mass on both side of the reaction.

Q: Most of calcium in nature exists as 40Ca2+, but there is a measurable amount of isotopes with mass…

A:

Q: What element does *Ra-224 become when it loses an alpha particle (an alpha particle contains 4…

A: The theory of radioactive disintegration states that all radioactive elements undergo spontaneous…

Q: (A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true…

A: True false

Q: When radioactive C-14 converts spontaneously to N-14, what change must have occured in the nucleus?…

A:

Q: You just started a new job and a fellow researcher found a fossil that they believed to be 20,000…

A: Given: Half-life of the new isotope = 2000 years. And the actual age = 4000 years.

Q: Which of the following isotopes of calcium would be the most stable?     calcium- 38 calcium- 40…

A:

Q: Answer the following if True or False. (1-10) 1. Radioactivity emanates from stable isotopes of…

A:

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: In the following nuclear equation what particle is B? 21083Bİ - A + 210 84P0 and then 210 84P0 → B +…

A: In this question, we will see that what is B particle.  You can see details Solution below.

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A: NOTE : Since you've posted multiple sub-parts,we'll solve first three sub-parts for you. To get the…

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

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A:

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

A:

Q: Learning Give the nuclear symbol, including superscript and subscript, for each type of radiation.…

A: Alpha radiation consist of two protons and two neutrons, which is associated to a particle identical…

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A: The correct answer about radioactive decay is given below

Q: What is the name of particle X in the following reaction? 232/90 Th -> 228/88 Ra + X

A: Henry Becquerel was the one who had started working on some elements and he found some elements that…

Q: USE THE PERIODIC TABLE BELOW! 1. nitrogen 13 decays by alpha emission and a new element is formed. -…

A: Alpha Decay: releases He molecule Electron capture: reduces the atomic number and kills on proton

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A: Answer  The given each element goes to stable form by nuclear…

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A: Atomic number Mass number The atomic number is the total number of protons in the atom or ion.…

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A: Nuclear stability is the nucleus of an element is stable and thus it does not decay spontaneously…

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

A:

Q: Write balanced nuclear equations for the following processes: Bismuth-214 undergoes beta decay…

A: When a radioactive element emits one beta particle the mass number of the daughter element remains…

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

Q: 217 At decays by a - emission. What is the new 85 The isotope nucleus that forms? O 221 Fr 87 213 Ро…

A: • We need to determine the daughter nuclide formed by the alpha emission of given isotope.

Q: Complete the following nuclear equations. 239 Pu 94 235 Cm 96 96 235 Cm 235 U 92 92 U 235

A: Alpha decay: Alpha decay is a process of nuclear decay in which the unstable nuclei is converted…

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A:

Q: Nuclei that contains 2, 8, 20, 50, 82, or 126 protons or neutrons are generally more stable than…

A: In an atom, there are three sub-atomic particles that are electrons, protons, and neutrons. In a…

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A: We know that any nuclei is stable if it has full electrons in its outer most orbital, and the fully…

Q: Write a nuclear equation for the type of decay each of these unstable isotopes is most likely to…

A: Nuclear reactions   By Nuclear reactions an  unstable nucleus emits radiation and is transformed…

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A: The atomic numbers of the elements are  radium    : 88 iron         : 26 uranium  : 92…

Q: Which type of nuclear radiation is being emitted here? 234 Th →234 Pa+ { 0 e 90 O alpha O beta O…

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.