QUESTION 1 Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron falls from the n = 7 to the n = 4 principal energy level. O 2.17 x 103 nm O 1.38 x 1014 nm 9.18 x 10-20 nm 4.45 × 10-20, nm 2.16 x 10-6 nm

Q: What is the wavelength of light (in nm) emitted when an electron transitions from n = 5 to n = 2 in…

A: Given, n1 = 2 and n2 = 5 According to the formula, 1λ = R(1n12 -1n22 )  Where R = 109678 cm-1

Q: Ionization is the process of removing an electron from an atom. For an atom, X, the first and second…

A: Given that, the equation is:

Q: Identify the type of orbital represented by each image below. Question #3

A: Atomic orbitalsThe three-dimensional region around an atom's nucleus where there is the greatest…

Q: What is the wavelength, in nanometers, of light emitted when a hydrogen atom undergoes a transition…

A: Recall the relation to calculate wavelength of light emitted            1λ=RZ21n12-1n22where,Rydberg…

Q: 1s 25 2p How many 1s electrons are in the ion?

A: Given :  An atomic cation configuration is given and we have to write the electrons present in 1s.

Q: Which of the atoms listed below would have the largest atomic radius?   Select one: Sr Ge As Sn Ca

A: The atomic radius for a given element can be defined as the measure of the measure of the size of…

Q: write the full electron confuguration for zinc

A: Zinc lies in d-block elements in 3d series with d orbital fully filled thus making it stable.

Q: 2. When potassium is irradiated with light of 1 = 470 nm, electrons are emitted with a velocity of…

A: Photoelectric effect- The ejection of electrons from a metal plate when light falls on it.

Q: Calculate the wavelength (in nm) of the spectral line produced in the hydrogen spectrum when an…

A: Given, electrons falls from n=4 to n=1  So we have to use the rydberg formula

Q: How much energy is required to remove an electron from the second shell 1 ДЕ -(-2.178 х 1о1 J) 2 n.…

A: Ionization energy: It is the energy required to remove the electron from its outermost shell from…

Q: Which quantum number describes the size of the area in which an electron will be found in? m₁ ms d

A: Here is the multiple choice question

Q: 5. Write the expected electron configurations for each of the following: A) Mn²+ B) Fe C) F- D) Mg…

A: Expected electronic configuration of  a) Mn+2 :  Atomic number of Mn (Manganese) = 25 Electronic…

Q: 1A H 2A Li Be 3A 4A SA 6A 7A B C N O F Ne Na Mg 3B 4B SB 6B 7B Al Si P S Cl Ar 8B- 1B 2B K Ca Sc Ti…

A: Se stands for Selenium. Atomic number of Se is 34.Thus, it has 34 electrons.

Q: Identify the sub-shell in which electrons with the following quantum numbers are found: n=2, I=0 3p…

A: n = 2  L = 0  Identify the sub - shell which have above quantum number = ?

Q: The image below demonstrates several absorption and emission transitions for a particular atom. On…

A: We know that energy and wavelength are related. Rhe formula is - E = hC/λ whereλ = wavelength of…

Q: 9. An electron in the hydrogen atom relaxes to the n≤2 orbit and 431 nm light is emitted. What was…

A: For the hydrogen atom  An electron relaxes to the n= 2         i.e. nf = 2  Light emitted of…

Q: What element has 6 electrons in its highest energy shell? O Magnesium Oxygen Nitrogen O Aluminum

A: Here we are asked which element has 6 electrons in its highest energyshell from the given options.

Q: If an electron falls from the n = 2 to the n = 1 energy levels in a Hydrogen atom what wavelength of…

A: We know, the relation---- ν/c = 1/λ λ = c/ν   ------- (1) Where, ν is the frequency, c is the…

Q: Calculate the wavelength of light associated with each cation.  Rubidium , Rb+ Cesium , Cs+ Rb…

A: Given :  Rb wavelength 408nm Cs wavelenth 403 nm   Find: wavelength of light associated with each…

Q: Choose the larger atom from each of the following pairs. Match the symbols in the left column to the…

A: The comparison of the relative size of different atoms will be as follows:   As we move down the…

Q: An atomic cation with a charge of +2 has the following electron configuration: 1s²2s²2p° How many…

A: The electron configuration of +2 charged cation is as follows: 1s² 2s² 2p⁶

Q: Finally, examine the atomic spectrum below. Estimate the wavelength of each spectral line, then use…

A: The spectral lines are observed at- 462 nm 492 nm 612 nm 662 nm

Q: The diagram to the right represents energy transitions an atom. Which arrow corresponds to the…

A: As we move from violet to red in VIBGYOR, energy decreases. Hence, order of energy is as follows:…

Q: that

A:

Q: < Question 15 of 28 What is the wavelength of light (in nm) emitted when an electron transitions…

A: Electron in hydrogen transition from n = 5 to n = 2nf = 2ni = 5Wavelength of the light emitted (λ) =…

Q: Write the electron configuration for the following elements and ions using spdf notation (without…

A: Electronic configuration of elements and ions

Q: Each orbital diagram shown below describes an excited state of an atom of a different element. Use…

A:

Q: The orbital diagram that follows shows the valence electrons for a 4+ ion of an element. Part A What…

A:

Q: Calculate the wavelength (in n) of the red light emitted by a neon sign with frequency of 4.74x10

A: Given: Frequency is 4.74×1014 s-1 To calculate: Wavelength in nm

Q: For each of the following pairs, indicate which atom or ion has the smaller ionization energy. Type…

A:

Q: Which atom has the largest (first) ionization energy? Group of answer choices Mg Sr Si S

A:

Q: Calculate the energy of an electron in the n = 3 state of a He+ ion.

A: Given n = 3  He+ ion so,  atomic number = 2  k = 2.179 x 10-¹⁸ J  We have to calculate energy of…

Q: 1. calculate the emission wavelength in nm of the photon that is emitted when an electron in a…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Which atom is the smallest? As Sb P N

A: The given elements are : As Sb P N

Q: Which of the following atoms will have a larger ionization energy than arsenic? Kr Sb As1- Ge

A: To find: The atom having more  ionization energy than arsenic? The atoms given are: Kr Sb As1- Ge

Q: Which of the following is a set of invalid quantum ņumbers? On=4, I=3, m_I= -3 On=3, I=3, m_I= -2…

A: This question is related to atomic structures ( Quantum numbers) .  See the written solution ......

Q: QUESTION 2 The Magenitic Quantum Number specifies the orientation in space of an orbital of a given…

A: True.  The magnetic quantum number specifies the orientation of a given energy (n) and shape (L).

Q: How many electrons can have the following set of quantum numbers? n= 4, 1 = 3, m, = -1/2 O 2 O 8 O 3…

A:

Q: Using the following equations and constants, calculate the energy required to ionize an electron…

A: Ionisation energy is the amount of energy required to eject an electron from outermost orbital in…

Q: Working with gas discharge tubes in a spectroscopy lab, you measure the following set of lines for a…

A: 1. The visible spectrum of light is typically considered to range from 400-700 nm, so only the…

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.