The lowest energy orbital in the quantum-mechanical model is the: Group of answer choices a. none of the above b. 1p orbital. c. zero orbital. d. 1a orbital. e. 1s orbital.

Q: Use quantum numbers to describe an electron in an atom.

A: Quantum numbers tells the address of electrons .

Q: 6.45 What are the inadequacies of Bohr’s theory?

A: Bohr's theory of an atom defined that the negatively charged electrons revolved around the…

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI…

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

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI…

A:

Q: Consider a orbital. a. What are the allowed values for the and quantum numbers for a orbital? b.…

A: Quantum numbers are the set of four numbers with the help of which we can get complete information…

Q: If looking at the 2nd energy level in an atom: a. Where do you find the 2nd energy level on the…

A: The second energy level is the 2nd shell or orbit in the elements. a) Since in the periodic table,…

Q: The lowest energy orbital in the quantum mechanical model is the zero orbital 1a orbital 1p…

A: Given that :  We have to identify which orbital in the quantum mechanical model has the lowest…

Q: What is the valency of krypton?

A: Krypton is a noble gas element.

Q: Consider the electron configuration of an element in the ground state in Figure 5. Which rule or…

A: Pauli's exclusion principle: This principle states that no two electrons in the same atom can have…

Q: a. How many orbitals are in this subshell? [ Select ] b. What is the shape of one of the orbitals in…

A:

Q: Which statement best describes an occupied orbital, according to the quantum mechanical model?  (a)…

A: The three-dimensional region of space that indicates where there is a high probability of finding…

Q: What are degenerate orbitals? According to Hund’s rule, how are degenerate orbitals occupied?

A: Those orbitals which have same energy are called degenerate orbitals. For a multi electron system,…

Q: Determine the quantum numbers for the outermost three electrons for an atom of lithium starting with…

A: It is a set of numbers, which explains the position and energy of electron in an atom .

Q: a.Atomic structure of Halogen Atom and Hydrogen Atom b. write down Halogen Atom and Hydrogen Atom’s…

A: Atomic structure of element contains nucleus and electrons around it .

Q: ) Draw the graph of 4π r2R2 versus r for the hydrogen atom and explain it. Also compare the…

A: Introduction: We have to draw curve for hydrogen atom for (4πr2R2 Vs r ).

Q: Which quantum number defines a shell? Which quantum numbers define a subshell?

A: The quantum number that defines a shell and the subshell are as follows:

Q: Describe Niels Bohr's model of the structure of the hydrogen atom. More than one selection may be…

A: Option  A, C and D is correct answer.

Q: What type of orbital is designated n = 4, l = 3, ml = –2?

A: Quantum numbers These are the set of numbers that are used to describe the position and energy of…

Q: What is the maximum number of electrons in an atom that can have the following quantum numbers? (a)…

A: Maximum number of electron for in an orbit = 2n2     Maximum number of electron for in an orbit (n=4…

Q: How are the Bohr model and the quantum mechanical model of the hydrogen atom similar?   A. Both…

A: The comparison of the Bohr model and the quantum mechanical model of the hydrogen atom is given…

Q: Which statement about the orbital in Figure 7 is not correct? a) The orbital represented here could…

A: The orbital given is,

Q: Emissions are observed at wavelength of 383.65 and 379.90 nm for transitions from excited states of…

A: Given values are given as below: Wavelength, λ1 = 383.65 nm or 383.65× 10-9 m Wavelength, λ2 =…

Q: The orientation in space of an orbital is designated by which quantum number?

A: Orientation of an orbital in a space is determined by ml It is determined by the Magnetic Quantum…

Q: a) n=5, 1=4 b) n=4, 1=1 c) n=2, 1=0, m=+2 d) n=3, 1=2, m=+1 e) n=3, l=2

A:

Q: What is the maximum number of electrons that all the orbitals with a principle quantum number of 4…

A: For principle quantum number n = 4 , Maximum number of electrons = 2n2 = 2(4)2 = 32

Q: Each electron in an atom is specified by four quantum numbers. Find the other quantum numbers of…

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

Q: 17. For the quantum number, 1, what are the possible values when the quantum number, n, equals 2?

A: Given quantum number ; n=27 possible value of l = ?

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI…

A: Given: The diagram of transition of electron from one state to another as follows:

Q: The orientation in space of an orbital is designated by which quantum number? Select one: а. 1 b. n…

A: Principal quantum number specifies size of the orbital, Azimuthal quantum number specifies shape of…

Q: Quantum numbers arise naturally from the mathematics used to describe the possible states of an…

A: Identify which is allow combination----

Q: 1. Explain the different principles involved in a distribution in the orbitals?

A:

Q: Electrons can sometimes fill orbitals in a manner other than according to the rules we have…

A: According to the Afbau rule, lower energy orbitals are filled before the higher energy orbitals. An…

Q: In which of the orbital diagrams in Figure 5 is both Pauli's exclusion principle and Hund's rule not…

A: Pauli's exclusion principle: This principle states that no two electrons in the same atom can have…

Q: 8. In the quantum-mechanical model of the atom, how orbit is being defined? A. Region of the most…

A: Multiple question given related to quantum number and quantum mechanical model.

Q: What is the total number of orbitals associated with the principal quantum number 4'? What is the…

A: The total number of orbitals associated with the principle quantum no.  can be calculated by a few…

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (ote: the SI…

A: Solution The electrons of individual atoms may be excited from a lower energy level to a better…

Q: The electrons in an atom are grouped based in their shell, subshell, and orbital. What are the…

A: The electrons in an atom are grouped based in their shell, subshell, and orbital. The electrons in…

Q: Describe the major concepts (Hunds, Pauli...etc.) and explain why each is a key part of the "tool…

A: Pauli exclusion principle: It states that only two electrons can be accommodated in the same…

Q: Describe Niels Bohr's model of the structure of the hydrogen atom. More than one selection may be…

A: The Bhor model of an atom can be described as follows:

Q: 31) What electron configuration represents the first excited state of phosphorus? 1s 2s? 2p 3s' 3p…

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

Q: Part a) A line in the spectrum of atomic mercury has a wavelength of 252 nm. When mercury emits a…

A: a. We know that frequency v = c/lambda  Here, c = velocity of light = 3*10^8 m/s  Lambda =…

Q: -The probability density plots of 1s and 2s orbitals are given in Fig. 1s 2s - The density of dots…

A: Given diagrams of 1s and 2s orbitals are :  What is the true statement about 1s and 2s orbitals = ?…

Q: If ml = +1 for a certain orbital, this orbital cannot be which of the following?  a. s orbital  b.…

A: ml stands for the magnetic quantum number. It specifies the orientation of an orbital in space. Its…

Q: (a) How does the Bohr model differ from the quantum mechanical model of the atom? Describe at least…

A: A question based on atomic structure, which is to be accomplished.

Q: Assign a set of four quantum numbers to the outermost three electrons (last three in) in Scandium .

A: Quantum numbers are  used to describe  the position  and energy of electron  in an atom.

Q: Models of atom (i) similarities and differences between Rutherford and Bohr (ii) similarities and…

A: Rutherford model: In this model, the scientist Rutherford discovered that there is empty space in…

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.