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: Three of the known wavelengths of the emission spectrum of helium are 402.6 nm, 447.1 nm and 587.5…

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

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: Which electron transition in the Bohr model would produce light with the shortest wavelength? O n=…

A:

Q: In an atom, an electron moves from the first level (n=1) up to the third level (n=3) by absorbing…

A: It is given that an electron initially moves from an energy level (n=1) to an energy level (n=3) and…

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: 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: What happens to the pattern if we try to determine which slit the electron goes through by using a…

A: The Above question is from double slit experiment Of electrons.

Q: Question 19 Which of the following is true about emission spectra? emission of energy from elements…

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Q: Discuss the nature of light with your group. Transcribe one complete sentence about the physical…

A: Human eyes can see a  limited range of light. Only visible light can be seen by human eyes. The…

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: Rank the following components of the electromagnetic radiation spectrum from least to greatest in…

A: The solution is given below -

Q: The minimum energy needed to eject electrons from chromium metal via the photoelectric effect is 434…

A: The relation between the energy and wavelength of radiation is as follows, Given: The minimum…

Q: Heated lithium atoms emit photons of light with an energy of . What is the calculated frequency and…

A:

Q: Consider hydrogen atoms with electrons randomly distributed in the n= 1, 2, 3 and 4 orbits.…

A: • Here is given that the electrons for the hydrogen atoms are randomly distributed is the given…

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: Rank the following components of the electromagnetic radiation spectrum from least to greatest in…

A: In electromagnetic spectrum, we arrange different electromagnetic radiations in order of their…

Q: The longest wavelength of light that causes electrons to be ejected from the surface of a copper…

A: Given - Threshold wavelength of metal = 243 nm             Wavelength of incident photon = 200 nm

Q: The minimum frequency of light needed to eject electrons from a metal is called the threshold…

A:

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

A: Answer: This question is based on photo electric effect where bombarding of photons on a metal…

Q: Radio wave Shortest Wavelength Infrared Second Longest Wavelength Gamma ray Longest Wavelength

A:

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: n=2 PHOTON n=2 РHOTON n=1 n=1« FIGURE I FIGURE II Which figure correctly represents when LIGHT IS…

A: An electron jumps to a higher state when it absorbs energy or photons. An electron returns to a…

Q: Which particle has the longest de Broglie wavelength, if all are traveling at 1500 m/s? O a helium…

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

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Q: Using these data, find the experimentally determined value of Planck's constant, ℎh , and the…

A: The value of plancks constant h = 6.63 x 10-34 J sAverage value of frequency = 3x1015 /sAverage…

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

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Q: 12. What causes some parts of the electromagnetic spectrum to be harmful to humans? O short…

A: The correct answer is given below

Q: Please help me solve the following question, explain and make sure its correct 10000% thanks

A: 1) To find the minimum frequency of light needed to eject electrons from calcium, you can use the…

Q: The Find the minimum energy needed to eject electrons from a metal with a threshold frequency of…

A: The minimum energy needed to eject electrons from a metal is, Eb = hv0 where, E = minimum energy, h…

Q: Silver has a threshold frequency of 1040 THz, while gold has a threshold frequency of 1330 THz.…

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.