According to Hund’s rule, how many singly-occupied orbitals are there in the valence shell of a carbon atom in its lowest energy state?

Q: When a free electron hits an atom, one electron is always excited to the highest energy level…

A: When a free electron hits an atom, electron is excited to various intermediate levels other than…

Q: Draw the Lowest Unoccupied and Highest Occupied orbitals for this. a) Lowest Unoccupied b) Highest…

A: lowest unoccupied orbitals means the lowest energy level where electron density = 0 Highest occupied…

Q: What is the electronic configuration of oxygen? Does it have any unpaired electrons? And if it does…

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Q: Atoms of Group 1 elements have the lowest first ionization energy of all the elements on the…

A: We have atoms of group 1 has lowest 1st ionization energy , but we have largest difference in…

Q: How does the shape of the periodic table demonstrate the repetition of the energy levels and the…

A:

Q: I am having trouble understanding valence configuration. How do you determine the valence…

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Q: atom possess? (c) An atom has the electron configuration 1s22s22p 3s23p2. How many valence electrons…

A: The question is based on the concept of atomic structure. we have to describe about the valence…

Q: Draw the orbital diagram for the electron configuration of oxygen, atomic number 8. How many…

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Q: Define an atomic orbital, how many orbitals do we have? and how many electrons can they hold?

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Q: How are electrons distributed in different orbits(shells)?

A: The arrangement of electrons filled in the atomic orbitals is defined as electronic configuration.…

Q: Elements in group 17 have how many valence electrons?

A: Group 17 belongs to Halogens . Halogens has seven valence electrons on their outer most electronic…

Q: Write the full electron configuration for tellerium (Te) list the number of valence electrons this…

A: Full or complete electronic configuration can be defined as the distribution of electrons of an atom…

Q: What is the electronic configuration of copper? Which electrons are important for chemical…

A: Knowing the number of electrons in the Cu atom is necessary before we can write the copper electron…

Q: For an electron in a 4d atomic orbital: How many radial nodes does this orbital have? How many…

A: Radial node : it is spherical shape where possibility of getting electrons is zero.  Angular node :…

Q: 18.  The inner electrons of an atom that do not participate in chemical bonding are referred to as…

A: Ans: D ( The inner electrons of an atom that do not participate in chemical bonding are referred to…

Q: spin of electron

A: Spin "up" and "down" allows two electrons for each set of spatial quantum numbers. An electron spin…

Q: sing the orbital diagram for the atoms below, which one(s) is(are) diamagnetic? Mark a rite the…

A: The question is based on the magnetic properties of the atoms. we have to identify which of the…

Q: Identify the orbital     pz orbital      dxy orbital     px orbital      dyz orbital     py…

A: The solution is as follows :

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule: B…

A: Energy is inversely proportional to the wavelength. E=hv ( Niels Bhor ) h=Planck constant…

Q: It requires 799 kJ of energy to break one mole of carbon-oxygen double bonds in carbon dioxide. What…

A: Given, E = 799 kJ

Q: Consider the two electron arrangements for neutral atoms A and B. What is the atomic number of A? A…

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Q: For which blocks of elements are outer electrons the same asvalence electrons? For which are…

A: Outer electrons are the no. of electrons in the outermost shell (nth shell). Valence electrons are…

Q: Use the electronic configuration of zinc to explain why it forms only a +2. From which orbital(s)…

A: Atomic number of zinc is 30.

Q: Why are the shapes of atomic orbitals important?

A: Atomic Orbitals: atomic orbitals are wave function which helps to determine the wave nature of…

Q: Draw the shapes of the s, p, d and f orbitals. 2.  Draw the overlapping

A: Given : s , p ,d and f orbital  To find : draw the shapes of orbital  Solution : There are generally…

Q: Identify the orbital.

A: We have to identify the given orbital

Q: The periodic table of elements contains groups of elements that have very similar reactivity. This…

A: Answer is attached below

Q: The following are hypothetical configurations for a carbon atom. 1. 1s22s22p2 2. 1s22s12p12d2 3.…

A: Given: The following are hypothetical configurations for a carbon atom:1. 1s22s22p22. 1s22s12p12d23.…

Q: A. Given the following elements: N and O a) Write the electronic configuration of each atom in their…

A: Atomic electron configurations are written using a standard notation that arranges all atomic…

Q: The electron configuration of gallium (I) ion is: Group of answer choices [Ar] 4s23d10 [Ar]…

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Q: How many unpaired electrons does phosphorous have in its highest energy subshell? (note: this is…

A: According to Pauli's Exclusion Principle, no two electrons in the same atom can have identical…

Q: A. Given the following elements: N and o a) Write the electronic configuration of each atom in their…

A: Electronic configuration is the arrangement of electrons around the nucleus in a particular atom or…

Q: Identify the orbital py orbital px orbital  dyz orbital  f orbital  dxy orbital

A: dxy , dyz and dzx  orbitals are in wetween the axis having 4 lobes and dx2-y2 , dz2  orbitals are…

Q: Valence electrons: A) are the electrons located in the energy shell of highest n quantum number. B)…

A: Valence electrons :

Q: There are three rules electrons normally follow when occupying orbitals in an atom. (i) Name each of…

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Q: How many orbitals exist when n=-2?

A: Orbits: Electrons travels in a circular path around the nucleus. These circular paths are known as…

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

A: The smallest unit of particle is known as atom. The behavior of electrons in an atom and their…

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: Draw a Bohr's model of fluorine. How many electron shells does it have? How many valence electrons…

A: According to Bohr's model, the electrons in an atom are in orbits of differing energy around the…

Q: The total number of electrons, valence electrons, and valency of He, C, and N?

A: Given  Atom = He , C , N  Total Number of electron ,Number of Valence electron ,Valency = ?

Q: Write the ground-state electron configurations of the following ions.  (a) Li+     (b)…

A: a) Since Li has ground state configuration as  1s2 2s1 And its having  1+ charge means it has lost 1…

Q: How many unpaired electrons are found in the ground stae electron configuration of silicon (Si)?

A: The ground state electronic configuration of silicon can be given as

Q: If we say that electrons travel around the nucleus of an atom in rings or shells, we can assign that…

A: The atomic number of an element is equal to the number of protons and electrons present in it.  For…

Q: How many unpaired electrons dooes magnesium have and show by electron configuration

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Q: Electron configuration for sodium atom is: 1s2 2s2 2p6 3s1  Explain shortly on your own words the…

A: In sodium atom total number of electrons are 11 in which valence electron is present in "s" subshell…

Q: How many total nodes will f block elements in period 8 have? a. How many planar nodes? b. How many…

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Q: 1.15 Use the trends in orbital shapes you've just learned to describe the general features o1 (a) a…

A: Orbital is defined as three dimensional region around the nucleus where the probability of finding…

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.