Suppose that the H2+ ion is excited by light so that an electron moves from a lower-energy to a higher energy MO. Would you expect the excited- state H2+ ion to be stable or to fall apart? Explain.

Q: To which group of the periodic table does the general valence electron configuration ns2np4…

A: ns2np4 means 2 electrons in outer s orbital and 4 in outer p orbital

Q: Answer all the questions to get a like. Draw the Lewis dot structure of the following elements. Y,…

A:

Q: Match the radial distribution function diagram with its correct atomic orbital. O 3p O4s O 5f 3s O…

A:

Q: Write the electronic configuration of: (i) Al3+ (ii)K+ (iii)O2-

A: Electronic configuration of :  i) Al3+ = ?  ii) K+ = ?  iii) O2- = ?

Q: Aluminum chloride, AlCl₃, is used in a variety of organic reactions as a Lewis acid. Although it…

A: Given, that the electron configuration of Al is [Ne]3s²3p¹ We have to calculate the number of…

Q: Use MO theory to explain the following: - TT 2p 2р, 2р, 2р, 2р, 2px 2ру 2pz 2px 2Py 2pz 2px 2py TT2P…

A: Ionization energy is the energy required to eliminate one electron from Highest occupied molecular…

Q: He2+ + H → He* + H* Calculate the electronic energy change for this reaction. Assume all species in…

A:

Q: Write the electron configurations for (a) Ca2+, (b) Co3+, and (c) S2-.

A: Calcium loss 2 electrons and cobalt loss 3 electrons and sulphur gains 2 electrons

Q: Circle the species with largest ionization energy and explain your reasoning. Os, Fe*, Co, Ru

A: Ionization energy is defined as the amount of energy required to remove the most loosely bound…

Q: Give the electron configurations of the following: Br Ru3+ Hg2+ Sb

A: Electronic configuration of an atom is defined as the arrangement of electrons of the atoms in its…

Q: Write the ground state electron configuration for the following species. (use shorthand notation)…

A: Electronic configuration - electronic configuration is the arrangement of electrons of an atom or…

Q: WHICH OF THE FF DOES NOT BELONG TO THE GROUP? (NH4)2S, Ba(OH)2, (NH4)2CO3, BaCl2

A:

Q: Calculate the valence electron of the following molecules   PO43-   ICl2-   C3H8O

A: Calculate the valence electron of the following molecules--

Q: a) Explain why the third ionization energy of Al is significantly larger than its first ionization…

A: Ionization energy is defined as the amount of energy required to remove an electron from the…

Q: How many valence electrons does Sn have

A: The given chemical element is Tin, its symbol is Sn. Its atomic number is 50. The electronic…

Q: What's the full electron configuration of O²-? O 1s?2s2p4 O 1s2252p2 O 1s22s2p 3s? O 1522s22p6

A: The electronic configuration is determined using total electrons present in the molecule or ion.

Q: Which element has an quantum angular moment (L) of 0. O U OS O Mg Fe

A: Quantum numbers is the set of numbers which is used to calculate the energy and position of the…

Q: identify the electron configuration for Sr2+

A: Electronic configuration of Sr2+ is  1s22s22p63s23p64s23d104p6

Q: Which 2+ ion has the ground state electron configuration [Ar]3d³? O Co²+ O Fe2+ O Mn²+ O Cr²+ O V2+

A: According to Aufbau's principle,The filling of electrons in the orbital in increasing order of their…

Q: Give outer-shell configuration for the following ions (Noble gas core): Te2-, Rb+, Br-, Mn2+, Cr3+

A: Electronic configuration refers to the systematic arrangement of electrons in the various shells and…

Q: Is CN- ion likely to be a stable molecular ion?

A: The ions are stable, when the octet rule is satisfied. The atoms prefer to have eight valence…

Q: tom X is [Kr] 5s2 Atom Y is [Ar] 3d104s24p5. What is the likely formula of the compound between X…

A:

Q: XeF2 has 22 valence electrons. How many total electrons are in the Xe expanded outer shell?

A: To solve this problem we have to find the valence electrons of xenon.

Q: Write the valence shell electron configuration and dot symbol for Li, C, and O.

A:

Q: 6. a) describe the special case in secondary bonding in your own words. Give one example of this…

A: Secondary bonding

Q: Which outer electron configuration would you expect to belong to a reactive nonmetal? ns2 ns2np6…

A: Check which of the elements is reactive non-metal in the periodic table and write down its general…

Q: Arrange the species in order of decreasing first ionization energy. Rn Kr Mg He

A: Ionization energy is defined as the energy required to remove the most loosely bound electron from…

Q: What are the electron configurations of the following atoms and ions: O, Cl, Ca, Ca2+, Cr, F-, K+,…

A: Electronic configuration  An element describes how electrons are distributed in its atomic orbitals.

Q: EN =- 2) r in which r is the interionic separation and C, D, and p are constants whose values depend…

A: The given expression for the net potential energy, EN, is  Where C, D, and  are constants. r is the…

Q: Which level represents p* in a diatomic species? E 2 4 3 3 2 3 or 4 can be p

A: Sigma < Pi < Pi* < Sigma*

Q: Write the electron configuration for Al3+. Also, identify which of these electrons are valence…

A: Atomic no.of aluminium is 13 and it is a p-block element. Having electronic configuration: 1s2 2s2…

Q: Match each of the following with its correct answer The following electronic configuration [Kr] 4s…

A: The elements having unpaired electron are paramagnetic in nature. In the given question, only…

Q: Carbon-carbon bonds form the “backbone” of nearly everyorganic and biological molecule. The average…

A:

Q: Q1 Write electronic configuration of: Sc*, Cr*3, Mn*7, Fe** Q2which of the above is paramagnetic

A:

Q: How many of the following species are diamagnetic when in their ground state electronic…

A: Given species : F-, Mg, Ca2+

Q: true or false.

A:

Q: The energy required to break one mole of a hypothetical element X-X bonds in X2 is 145 kJ/mol. What…

A: The expression that relates energy of a radiation to the frequency of radiation is known as Planck's…

Q: Please give an example of one of Valence Shell Electron Pair Repulsion and explain what causes that…

A: NH3 have 1 lone pair and have SP3 hybrid  Bond angle as per the structure should be 109°28' but…

Q: explain the most likely two charges of iron ions, Fe2+ and Fe3+. Include details as to where the…

A: Iron ions can exist in two common oxidation states: Fe2+ (iron(II)) and Fe3+ (iron(III)). These…

Q: The electron configuration of indium is [Kr]5s²4d¹⁰5p¹. How many electrons does a neutral atom of…

A: The concept behind the answers lies in the understanding of electronic configurations, oxidation…

Q: I just need some help understanding how to tell the different between the size, shape , and energy…

A: In quantum mechanics and atomic theory, the term atomic orbital refers to a mathematical function…

Q: Determine electron configuration for each of the atoms or ions. A) Lr6+ B) As3- C) Pt

A: A) The chemical symbol of Lr is Lawrencium. This element is f-block element and is an actinoid. The…

Q: What is the short-hand electron configuration of cobalt(II), Co²+ ion? Enter the electron…

A: Atomic number of Cobalt is 27. It loses two electrons to form a dipositive ion Co+2  We have to…

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.