The volume of space occupied by the electron cloud in comparison to the nucleus is  about the same many times larger slightly smaller slightly larger many time smaller

Q: 13. How should the angle of deflection of an a particle by a nucleus vary with the closeness of the…

A:

Q: What is a quark?

A:

Q: 20. What is the total number of electrons in spherically shaped orbitals in an atom of Cs?

A: Spherically shape orbital is s-orbital.  In this determine the number of electrons present in s -…

Q: What is the atomic mass unit?

A: Solution- The atomic mass), we can also defined this as mass of the single atom .

Q: What is the term for the elements in the series that follows element 89?

A: the term for the element in the series that follows element 89 is actinide series.

Q: What is the number of electrons of the given element?

A:

Q: How many proto Mass # of Protons Element Element Name Atomic Number # of Neutrons # of Electrons…

A: Fill the  columns with suitable number and symbol--

Q: write the electronic configuration of born whose atomic number is 5 and mass number 11.

A: Given,  born whose atomic number is 5 and mass number 11.  Atomic symbol = B

Q: How is stability in atoms achieved?

A:

Q: A sample containing 1.00X 10 stored for 135 day s will remain at the end of the storag e period of…

A: Reaction in which rate is linearly depend upon one reactant is known as first order reaction.

Q: Which Greek philosopher argued that matter is continuous in 350 B.C?

A: The Greek philosopher, who argued that matter is continuous in 350 B.C has to be stated.

Q: Which element does not belong with the other four? 20Ca 19K 34Se 79Au 40Zr A) Ca    B) K    C)Se…

A: Atomic number of given elements  1. Calcium  has atomic number 20. 2. Potassium has atomic number of…

Q: If rubidium has an emission line at 1.28 X 106 m and ng is 3, what is the initial energy level? 6.…

A:

Q: What is a probable inter-nuclear distance between atoms that are bonded together? A. 1 um B. 10 nm…

A: There exists a net force (FN) between the atoms which are bonded together through a chemical bond.…

Q: It is observed that Ni, with an atomic mass of 65.9291 u, decays by emission. Identify the nucleus…

A: When the number of neutrons in the nucleus exceeds the number of protons, beta minus particle (β-)…

Q: Define the term protium?

A: Isotopes are nuclides that have the same atomic number but different mass numbers. Since isotopes…

Q: How are Deuterium and tritium are useful/

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

Q: What are the impications of Thompson related to cathode rays?

A: J.J. Thompson proposed a plum pudding model of the atom in which he stated that it had…

Q: Complete the equation and name the particle ejected from the nucleus. 20 °: O ? + °-1 ß + v…

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: WHAT IS THE NUCLEAR MASS AND THE NUCLEAR DENSITY OF THORIUM IN PERIODIC TABLE

A: We have to write the Nuclear Mass and Nuclear Density of Thorium in periodic table.

Q: Which atoms have the same mass number? Explain the answer.

A: ANSWER IS DISCUSSED BELOW :

Q: Use the concept of charges to explain why an alpha particle fired toward the nucleus is deflected…

A: Solution :      Rutherford's performed a gold foil scattering experiment to explain the structure of…

Q: d. 42He +2He > + 42HE → 126C f. 126C + 126C → 10Ne + e. 20 12

A:

Q: RE: What does the atomic number of an element represent? The atomic number of an element represents…

A: ★ What does the atomic number of an element represent ?  ★ The atomic number of an element…

Q: A beta particle is identical to an electron true or false

A: A beta particle is identical to an electron ,this statement is true.

Q: Visited (Atomic masses: iron-56 = 55.9349 amu; hydrogen-1 = 1.0078 amu; mass of neutron = 1.0087…

A:

Q: For Barium-138, determine the nuclear radius and volume of the Barium-138 nucleus

A: It is the size of nucleus on assuming that shape of nucleus is spherical .

Q: How many neutrons are present in P-31 and S-32? Select one: A. 15 and 14 B. 16 and 15 C. 16 and 16…

A: Given that:  Atomic mass of P(phosphorus) = 31 Atomic mass of S(sulphur) = 32 We know, atomic number…

Q: Write the electronic configuration and draw the orbital notation of each the following nuclides. 1.…

A: Electronic configuration can be defined as the arrangement of electrons in orbitals of an atom.

Q: it has been suggested that element 114 has unusual stability, bu 114 is not a magic number. what is…

A: The element with a higher atomic number stabilizes either by Fission or Fusion. The Binding Energy…

Q: Question 5: Use the following diagram to answer from A to C: O minutes 10 minutes 20 minutes 30…

A: Answer :-  (A) 10 minutes  (B) 12.5 g  (C) 40 g…

Q: The nuclear particle carrying a charge of +1e is the  a electron  b neutron  c proton

A: The neutrons and protons reside in the nucleus of an atom, whereas, the electrons revolve around the…

Q: isotope with one more neutron

A: Isotope are one of two or more species of atoms of a chemical element with the same atomic number…

Q: Why gamma rays emission cannot result in the formation of a new element

A: A gamma ray, or gamma radiation (symbol γ ) is a penetrating form of electromagnetic radiation…

Q: How do you compare the size of an atom to the size of its nucleus (make numerical comparison)?

A: An atom is composed of nucleus and extranuclear portion. Nucleus contains protons and neutrons while…

Q: Describe the energy_of the electron in the diagram below. Figure 1 e n=65 4 3 2 O energy is moving…

A: Welcome to bartleby!

Q: Which sub-atomic particles are part of the nucleus? Protons Lions Axons Electrons Neutrons

A: An atom contains three subatomic particles: Electron Proton Neutron Electrons are negatively…

Q: What is difference between Atomic mass & Mass nиmber

A: Atomic mass and Mass number

Q: Particle Mass (kg) alpha particle bullet 6.64 × 107 -27 0.00190 -27 proton 1.67 x 10-2 Velocity…

A: de-broglie equation: Wavelength = h/mv h = planck's constantm = mass of particlev = velocity of…

Q: Henri Becquerel discovered that unstable atoms were giving off small particles/rays. What was coming…

A: Nuclear radiation The emission of elementary particles or energy resulting from the decay of atoms.…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.