Which of the following best describes how the atomic number changes when a nucleus captures an electron? (Note: the electron is part of the reactants in the nuclear reaction) O It will not change, because the electron has such a small mass. O It will increase by one. O It will decrease by one. O It will increase by two.

Q: Which of the following represents isotopes?   O (mass number 18) and O (mass number 18) O (mass…

A: Isotopes are the chemical element having same atomic number but different atomic masses.  Isobars…

Q: What is an Atomic Number?

A: Atomic number  It is represented by the symbol Z. It is the number of protons present in the nucleus…

Q: Iodine-131 undergoes radioactive decay to form anisotope with 54 protons and 77 neutrons. What…

A: Iodine- 131 has atomic number(Z) of 53. Because in a neutral (uncharged) atom, number of…

Q: Question 15 Which of the following small particles is a small nucleus? O Beta particles O electrons.…

A: Here,  beta particle is similar to electron which does not have a nucleus. Neutrons are present…

Q: The nucleus, the massive center of an atom, contains which two particles?

A: Nucleus is the massive part of any atoms . It contains mostly all the mass any element. Nucleus was…

Q: Describe the forces acting on the particles within a nucleus and explain whyneutrons are the glue…

A: The forces acting on the particles within a nucleus and the reason why neutrons are the glue holding…

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: Differentiate between the mass number and the atomic number?

A: Mass number (A)- the number of protons(p) and neutrons(n) present in an atom of element called as…

Q: A neutron and a proton combine to form a nucleus why does the mass. Of the nucleus differ from the…

A: Given: A neutron and a proton combine to form a nucleus. And the mass of the nucleus differ from the…

Q: ) Listen 192- Jrite the products for the nuclear decay reaction of 7Ptwhich decays by producing both…

A: Radioactivity or radioactive decay is that process in which an unstable nucleus loses its energy by…

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: 10 3- mass #: # protons: # electrons: 56 Fe 26 element: # protons: # electrons: # neutrons:

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Which isotopes would you expect to be stable? 208 pb 234Pa uranium-235 oxygen-16 He

A: The isotopes which are expected to be stable are given below

Q: The last “missing” element from the first six periods waspromethium, which was finally discovered in…

A:

Q: conclude

A: Dear student I have given answer to your question in the image format.

Q: What is the mass of each isotope?

A: Isotopes are atoms of same elements which have same atomic number but different mass number. In…

Q: Please describe the structure of atoms. A. Charge (positive,negative, or neutral) a.…

A:

Q: For the particles of an atom, which two particles have the same mass?

A:

Q: Who presented the idea of neutron particle in nucleus? Frederic Soddy Ernest Rutherford Niels Bohr O…

A:

Q: CI is an example of O None of them O Isotope O lon O Molecule

A: Given is Cl- and it is asked that which species is this.

Q: What is nuclear fusion? O A. a process in which the nucleus of an atom combines with the nucleus of…

A: Fusion indicates that two or more substances are fused together.  Nuclear fusion is a reaction in…

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

A:

Q: Which of the following particles has a mass of -0 amu and a charge of 1-?

A: The question is asking us to identify a particle that has a mass of 0 atomic mass units (amu) and a…

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

A:

Q: Atomic # for uranium is 92 how many protons, electrons, neutrons in isotope U- 96?

A: Given that, Atomic number of U is 92.

Q: Identify for an atom of 55Mn: element name: _____________ Z, atomic number = ____ A, mass number…

A: The nuclear symbol of the isotope given is 55Mn.

Q: What is the mass of the isotope is arsenic-73

A: The correct answer is given below

Q: Using the periodic table, what is the element in period 5 with no stable isotopes? Please explain…

A: Technetium is a chemical element  with the symbol Tc and atomic number 43. It is the lightest…

Q: Identify for an atom of 32S: element name: _____________ Z, atomic number = ____ A, mass number =…

A:

Q: has a mass about the same as that of a proton has a-1 charge is found in the nucleus is attracted to…

A:

Q: What is the atomic mass of hafnium if, out of every 100 atoms, 5 have a mass of 176 amu, 19 have a…

A: The atomic mass of any element is given by the average mass of its naturally occurring isotopes.…

Q: Describe the experiment that provided the basis for ourunderstanding of the nucleus.

A: Describe the experiment that provided the basis for our understanding of the nucleus.

Q: Which of the following is incorrectly matched? neutron : -1 atomic mass unit (amu) neutron : located…

A: A chemical element is made up of atoms, the smallest unit of ordinary matter. Atoms, whether neutral…

Q: What are the different mass numbers of Isotopes ?

A: Different mass numbers of Isotopes are explained below,

Q: Experiments have determined that the average mass of helium is 4.0026 amu. What is the mass defect…

A:

Q: Complete the following chart, in order from left to right Isotope Mass Number Protons Neutrons 19 40…

A: Atomic number= number of protons Mass number = number of protons + number of neutrons

Q: An atom of Bromine - 81 has ____ protons and _____ neutrons. A) 35, 35 B) 55, 77.9 C) 35, 45 D) 35,…

A: In an atom, the atomic number represents the number of electron present in that atom. The number of…

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.