Calculate the longest wavelength (nm) that can provide an energy of at least 420 kJ/mol.

Q: How far from the nucleus in angstroms (1 angstrom = 1 × 10–10 m) is the electron in a hydrogen atom…

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Q: Which subshell is represented by the lanthanides family? Which subshell is represented by the…

A: Lanthanides and actinides  are f-bolck elements.

Q: Which element’s representative particle is NOT the atom? A) 8O B) 30Zn C) 36Kr D) 51Sb E) they…

A: In the given options we have only oxygen is is non metal rest of the element are metal metal are…

Q: (i) Define ionization energy. Ionization energy measurements are usually made when atoms are in the…

A: In physics, ionization energy is usually expressed in electronvolts (eV) or joules (J). In…

Q: Yellow light of a certain frequency has energy of 215 kJ/mol of photons. What is the energy of one…

A: Given that -  Energy of yellow light = 215 kJ/mol    Also we know that 1 mole of Photon contains =…

Q: What is the Pauli Exclusion Principle?

A: Electronic arrangement of atoms and molecules is given by several principles.

Q: In order to complete the quantum mechanical picture, a 4th quantum number called the spin quantum…

A: Spin quantum number is related to the spin of an electron.An electron assumed to be spinning…

Q: When do the effective nuclear charge that an electron experiences increase?

A: Effective nuclear charge can be defined as the net positive charge which is experience by an…

Q: What is the ground state of the atom?

A: An atom is a minute particle consisting of a nucleus. Nucleus consists of protons and neutrons. The…

Q: For the following electronic transitions in the hydrogen atom, calculate the energy, frequency, and…

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Q: How is the energy of a quantum of emitted radiationrelated to the frequency of the radiation?

A: The quantum theory of radiations was put forward by Max Planck which discarded the idea of the…

Q: How many unpaired electrons are present in the ground state of an atom from each of the following…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What is the difference between an atom’s ground state and an excited state?

A: An atom is the smallest building unit of any matter or object or substance we see around us. Atom…

Q: Determine the frequency of photon of light that gives off 2.85 × 10^-19 Joules.

A: Given that,E = 2.85 ×10-19 JNow you calculate the frequency of light

Q: describes how an atom emits color

A: The atoms emit colors.

Q: How does the energy of a principal energy level depend on the value of n? Does a higher value of n…

A: There are four type of quantum numbers.They are (1) principle quantum number(n) :- it gives us idea…

Q: What is the Pauli exclusion principle? Explain with an example?

A: Electronic arrangement of atoms and molecules is given by several principles.

Q: Explain the term, the electron affinity is positive?

A:

Q: It takes 491 kJ to remove one mole of electrons from the atoms at the surface of a solid metal. How…

A: # 491 kJ energy given to remove one mole of electron# calculate the energy to remove one electron…

Q: What

A: Bohr rule is : ( n + l ) rule If ( n + l ) is minimum value so it's have minimum amount of energy…

Q: How many times smaller is an electron than a proton?

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Q: d. If light with a wavelength of 690 nm strikes the photocathode, what is the maximum kinetic energy…

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Q: When an atom in an excited state returns to its ground state, what happens to the excess energy of…

A: The energy of electrons decreases as it comes in orbitals nearer to the nucleus. Since while…

Q: What is the energy (in kilojoules per mole) of ultraviolet light with a wavelength of 294 nm?

A: Given: Wavelength of light = 294 nm = 294 × 10-9 m.

Q: The amount energy of the given 2.36x10-21 J. What  is its wavelength

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Q: if an electron transition between energy levels 4 and 1 leads to a photon of blue light being…

A: The atoms of elements possess electrons in the valence shell along with their presence in the inner…

Q: What is the kinetic energy acquired by the electron in hydrogen atom, if it absorbs a light…

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Q: [References] Carbon absorbs energy at a wavelength of 150. nm. The total amount of energy emitted by…

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Q: 2. When an atom becomes excited (absorb energy), it will jump to the available orbital with a higher…

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Q: Why are there 8 in most electron shells but only two in the first one?

A: According to atomic model of an atom: An atom has many orbits around its nucleus which are named or…

Q: What is the total number of valence electrons in an atom of Mg-26 in the ground state?

A: The isotope given is Mg-26.

Q: How many unpaired electrons are present in an atom with 32 electrons?

A: Unpaired electron means electron that is not paired in the orbital.

Q: 11. What was the goal of the Bohr model and give one of the two assumptions made for this model.…

A: Bohar model proposed the structure of atom specially for hydrogen atom  and given by Niels Bohr in…

Q: Ultraviolet radiation and radiation of shorter wavelengths can damage biological molecules because…

A: Given: The energy required to break the carbon-carbon bond is 348 kJ/mol.

Q: How much energy, in kilojoules, is required to remove all the third-shell electrons in a mole of…

A: We know that ionisation energy is the minimum amount of energy required to remove valence shell…

Q: The atom whose electron configuration is 1s22s 22p63s23p3 is

A: Electronic configuration : It is defined as the distribution of the electrons in the various atomic…

Q: Place the following orbitals in order in increasing energy in a multielectron atom: Lowest energY I…

A: Given: The values of n and l for the orbitals- n=3, l=2 n=3, l=1 n=4, l=1 n=5, l=0 n=4, l=0 n=4,…

Q: Define the term The Bohr? What is its role?

A: Answer  The term of Bhor : -  Hypothetical path of different energy…

Q: How many unpaired electrons are present in the ground state of an atom from each of the following…

A: An Unpaired electron is an electron that is present in the orbital of an atom singly rather than a…

Q: Determine the longest wavelength of light required to remove an electron from a sample of potassium…

A: Energy of the electron is the product of Plank's constant and frequency. One mole of electrons…

Q: What is the problem with multi-electron atoms?

A: In the early 20th century Bohr model of the atom was a leading contender in explaining the…

Q: What do we call a particle of electromagnetic radiation? O a a photon b a proton an electron a…

A: Electromagnetic radiation is a form of energy that has all around us .

Q: Sulphur presents two lines: Ka₁= 5.37216 Å and Ka₂= 5.37496 Å 1. What is the energy difference…

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Q: which value of n yields the lowest energy?

A: INTRODUCTION: First calculate the energy in terms of Joules. For n=1 For n=2 For n=3 For n=4…