Why is light of at least a certain frequency needed to cause the photoelectric effect? O A certain quantity of energy is necessary to eject electrons from a metal A certain number of photons is necessary to eject electrons from a metal O A certain temperature is necessary to eject electrons from a metal O A certain number of atoms is necessary to eject electrons from a metal O A certain speed of light is necessary to eject electrons from a metal

Q: b. Which involves the emission of more energy in the H atom, an electron moving from n=4 to n=1 or…

A: we have to determine the transition that emits more energy

Q: Gamma rays microwaves ultraviolet light X rays radio waves red light infrared light violet light

A: Radio wave>microwave>infrared>red light>violet light>ultraviolet>x-ray>gamma…

Q: In scenario C, visible light is in the middle of the yellow region of the visible spectrum. Estimate…

A: The relationship between wavelength and frequency is: ν=cλ Where, c is the speed of light. λ is the…

Q: Which of these produces a discrete (or line) spectrum of electromagnetic radiation? O light emitted…

A: Please find your solution below : A discrete or a line spectrum is spectra formed when items are…

Q: s in an atom are allowed to move only on certain precise orbits ron's energy increases with…

A: Bohr's atomic model is based on particle nature of electron and quantization of energy.  Bohr's…

Q: In his explanation of the threshold frequency in the photoelectric effect, Einstein reasoned that…

A: The relationship between the longest wavelength of radiation which can cause the photoelectric…

Q: Use the References to access important values if needed for this question. The wavelength of a…

A: To Convert given wavelength (nm) of a color of orange light to  energy (kJ/photon)  given:…

Q: An astronomer is studying the emission spectrum of a star in the Andromeda galaxy. What can the…

A: We will have various information,like temperature, density, element

Q: When a metal was exposed to photons at a frequency of 1.10 x 1015 s-, electrons were emitted with a…

A:

Q: When a metal was exposed to photons at a frequency of 1.07x10^-15 s^-1, electrons were emitted with…

A: Photoelectric effect is defined as the phenomenon in which electron is ejected from the surface of…

Q: Wavelength (nm) 421.0 Frequency (Hz) Energy (kJ)

A: The wavelength of the photon is = 421 nm The frequency of the photon is =? The energy of the photon…

Q: Determine the frequency and energy for light with a wavelength of 694.0 nm. V = kJ/mol E = What is…

A:

Q: Use the information to answer the following question. Color Element Red Orange Strontium Calcium…

A: The question is based on the concept of colour of the inorganic salts. We have to identify the…

Q: Some elements do not produce a visible color during a flame test. However, the electrons are still…

A: Here we have to explain why some emission of radiations are colour and others are not during come…

Q: microwave radiation violet light a high pitch sound wave a low frequency infrared photon an orange…

A: Electro magnetic radiation: Radiation that has both electric and magnetic fields and travels in form…

Q: Which of the following statements are true? I. An excited atom can return to its ground state by…

A: Electromagnetic radiations are the waves having both electric and magnetic fields and travel at the…

Q: Which statement is true concerning Bohr's model of the atom? O The model accounted for the…

A: Introduction to Bohr's model of an atom. By stating that electrons move in fixed orbitals (shells)…

Q: An electron is promoted from a lower level (Ni) to a higher level (Nf). Which of the following…

A: When the electron makes a transition from lower energy level to higher energy level, it absorbs…

Q: Light is given off by a sodium- or mercury-containing streetlight when the atoms are excited. The…

A: •Light is electromagnetic radiation which wavelength lies in visible region.

Q: Using the figure provided, pick an emission line in the Paschen series for a hydrogen atom and…

A: The different series of spectral lines like Lyman series, Balmer series, Paschen series, Brackett…

Q: Explain what it means for an atom to absorb a photon of a particular color and emit a photon of a…

A: (a) When an atom absorbs a photon, in the form of energy, the electrons of that atom gets excited…

Q: energy of red line: wavelength of light blue line: frequency of light blue line: energy of light…

A: Answer of this question :-

Q: Match the evidence and reasoning to support the claim: Light is a particle. Evidence: I. Light…

A:

Q: Using the Rydberg equation, calculate the wavelength of the emission line when electrons drop from…

A: Ultraviolet (UV) range = 100-400 nm VISIBLE range = 400-800 nm

Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table…

A: Let us firstly draw electromagnetic spectrum and than find out the order of given radiations.

Q: A certain metal is exposed to light with increasing frequency and energy of the photons. Electrons…

A: Please find the attached images for answer

Q: Fill in the information missing from this table: Some electron subshells principal quantum number n…

A:

Q: Consider the four scenarios involving visible light. In scenario A, visible light has a wavelength…

A:

Q: the owing question. Color Element Red Strontium Orange Calcium Yellow Sodium Green Copper Potassium…

A: When electron fall back from excited state to lower state ,they emit energy in form of light.

Q: In bohr’s original experiment, he expected the electrons in atoms to behave just like any other…

A: Answer - The wavelengths and frequencies of the light emitted by an atom (its emission spectrum) is…

Q: The energy required to remove electrons from lithium is 520 kJ/mol. What is the threshold frequency…

A:

Q: A B 2 3 n=4 Hydrogen Atom Use the Bohr model of the hydrogen atom to determine the properties of the…

A: Bohr model represents the electrons around the nucleus. Electrons move in circular orbits. When…

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 statement best describes what happens when light hits an atom? an electron will go from a low…

A: we will get observation when light hits an atom

Q: * Question Completion Status: QUESTION 4 Roaches for sale | C... For Sale/Trade/Wan... * Tarantulas…

A: This question is related to the atomic structure of hydrogen atom. Hydrogen is the first element in…

Q: Describe the process by which an atom absorbs a photon to move an electron in an atom. Your answer…

A: The process by which an atom absorbs a photon to move an electron in an atom.

Q: Consider an atom of hydrogen that absorbs light of a wavelength 384.0 nm. What is the energy, in…

A:

Q: An electron in the n = 2 level absorbs a photon with a wavelength of 433.9 nm. To what energy level…

A:

Q: Here is a sketch of the radial probability distribution of three orbitals: probability 0.012+ 0.010-…

A: The distance at which the probability of finding an electron is highest is the most likely distance…

Q: The work function (binding energy) is the energy that must be supplied to cause the release of an…

A:

Q: 28. What is the energy per mole of photons of light with a frequency of 6.39 x 10¹3 Hz?

A: We have to calculate the energy per mole of photons of light with a frequency of 6.39×1013 Hz.

Q: When electrons pass through a sheet of aluminum, a pattern of high and low intensity is observed.…

A:

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.