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: 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 makes an atom of one element different from an atom of another element?

A: Every element of the periodic table has different physical and chemical properties. These properties…

Q: Determine how electrons are configured around a nucleus.

A: Atom is the basic unit of matter it consists of heavy positive mass at its center called nucleus and…

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: Give some examples of core electrons?

A: Core electrons are termed as those electrons in an atom which are not valence electrons and they do…

Q: Which is the electron configuration for an atom of atomic number 18?

A: We have the atomic number as 18,  We have to write the electronic configuration for this atom.

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: Use the atom builder interactive to determine whether each nucleus is stable or unstable.

A: For a stable nucleus the ration of numbers of neutrons and number of protons must be 1:1 for…

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: 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: 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: SECTION 3: Communication 5. The development of the modern atomic theory was initiated by John Dalton…

A: Modal of Atom  by- i-Joseph J. Thomson  ii-Ernest Rutherford  iii-Neils Bohr's We need to Briefly…

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: Atomic Radius decreases as you move left to right even though there are additional protons ,neutrons…

A: Atomic radius decreases as you move left to right even though there are additional protons, neutrons…

Q: Define atomic radiation.

A: Radiation : 1. It is a flow of atomic and sub-atomic particles and of electromagnetic waves which…

Q: Which sub-shell has the highest energy among the following?   a. 4s b. 5s c. 3d d. 4p

A: For each orbital have specific energy level associated with it.  Lowest energy level orbital filled…

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: What type of atom is the largest?

A: If by biggest it mean smass then the mass of the atom is mostly from the protons and neutrons. So…

Q: What

A: We will Give name of charged particle.

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

A: ANSWER IS DISCUSSED BELOW :

Q: 20- Which statement regarding the Bohr model of the atom i incorrect as it pertains to valence shell…

A: We have to tell which option is correct from given choices of options

Q: What element is located in group 1A but is not an alkali metal?

A: The elements that are present in group 1A are called as alkali metals because their hydroxides form…

Q: Which atomic model first contributed the idea of a small nucleus located at the center of the…

A:

Q: How did Max Planck explain the fact that metal will glow different colors when heated?

A: Max Planck has studied the emission of light by means of hot objects. He observed a heated metal…

Q: Atoms lose or gain electrons in order to

A: The main concern of an atom is to gain stability.  Stability is gained by attaining octet, which…

Q: Use the periodic table to answer this question. How many of the electrons in the electron structure…

A: Given  Element = Uranium  Electrons in the electron structure of uranium occurs in p orbitals = To…

Q: 2. Stellar Formation and Evolution a. H +H →²¼H + b. 2H +H →32HE + c. 32He +32He → 42He + - -

A: In the stellar formation and evolution we know that there is formation of Helium .Lets take for…

Q: . Write the complete orbital box diagram for each of the following. A) N B) Na C) S

A: The answer is given as follows

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: According to the Aufbau Principle, which sublevel should start filling with electrons before the 3p…

A: According to Aufbau Principle,  Sublevels are filled in increasing order of energy. The energy order…

Q: Determine the atomic number of the stable configuration of nuceli with mass number A=167?

A:

Q: Describe the parts of an atom and where they are found within the atom.

A: An atom is a very tiny particle of an element or we can say that atoms are the basic building blocks…

Q: How might an atom obtain enough energy to become ionized?

A: If the atom has to be ionized, it means that the electron has to be removed from the outermost…

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.