When light with a wavelength of 198 nm strikes the surface of tin metal. What is the photon energy from the wavelength? A 1.0 x 1018J B 7.1 x 1019J C 1.98 x 107J D 1.2 x 1018J

Q: what two movements form an orbit?

A: An orbit is the path one object in space takes around another.

Q: Rank the following states of matter according to particle energy, from the most kinetic energy to…

A:

Q: Why does a neon sign give off red light?

A: Neon is a noble gas element. It has atomic number of 10 and atomic mass of 20g/mol. It's chemical…

Q: nan atom in its lowest type your answer. state type your answer. a photon, an electron jumps to a…

A: Ash

Q: Question 1 A bicycle, car and truck are traveling down the street at the same speed (15 miles/hour).…

A: By using De-Broglie equation, λ= hm.v For same velocity,  wavelength varies inversely with mass.…

Q: What are some examples of fluorescent light and incandescent light?

A: Fluorescent lights are gas filled tubes (tube lights). The gas gets excited by electric pulses and…

Q: Of radio waves, infrared light, and UV light, which has theshortest wavelengths?

A: The electromagnetic spectrum is the range of all types of EM radiation. Radiation is energy that…

Q: In the Bohr model for a hydrogen atom, an electron revolving in the third excited state. If the…

A: Energy of an e- in nth orbital of hydrogen atom is given by=-13.6n2eV a)The 2nd excite state of…

Q: 1. What is the energy in Cal unit of one photon of microwave radiation with a wavelength of 550nm?…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: If the photoelectric effect is observed when using blue light but not red light, the threshold…

A: The ejection of electrons in the photoelectric effect is directly proportional to the energy of the…

Q: 27. Refer to the handout "Reference Absorption Spectra." Which gases produced this spectrum? A. iron…

A: Option A: This option is incorrect because the spectrum shown does not match the known absorption…

Q: It is the number of waves that pass-through a given point in each second is called what? Select…

A: is the number of waves that pass-through a given point in each second is called what?

Q: True or false? A. Phosphorescence occurs at higher energy then fluorescence. B. Fluorescence occurs…

A: An immediate emission of light radiation absorbed by the atoms or molecules is known as…

Q: Cosider the image below. Suppose a student would like to find [A] which is a green solution. What…

A:

Q: Visible light has frequencies from 4.3x10¹4 to 7.5x10¹4 Hz, whereas the frequency region for X-ray…

A: Given :  Range of frequencies for visible light = 4.3 x 1014 to 7.5 x 1014  Range of frequencies for…

Q: A particle is placed inside a box. Its energy was determined to be 36•Eg. This partice exists in a…

A:

Q: One model of light depicts it as consisting of energyparticles known as ___________.

A: Light- a form of electromagnetic radiation that can be observed by the human eye and has a…

Q: What is solar corona?

A: Corona, outermost region of the Sun's atmosphere, consisting of plasma (hot ionized gas). It has a…

Q: An atom can be excited   a. if it emits a photon.   b. if it collides with another atom or…

A: Excited state = When electron in an atom gains energy and move to an orbit of higher energy than…

Q: What is TEL ? For what purpose it is used

A: All chemical compounds can be classified as organic and inorganic compounds. Organic compounds are…

Q: f the wave is the red arrow pointing

A: Wave motion is the movement of air from one direction to other direction. There are two types of…

Q: The energy of a photon depends on its: a. Amplitude b. Pressure c. Temperature d. Speed e.…

A: The energy of a photon is given by the formula, E=hν where h is the plank's constant and v is the…

Q: A common belief among scientists is that there exists anunderlying order to nature. Einstein…

A: Science can be developed and applied on whatever possible by humans. But there are some underlying…

Q: Without any additional interactions, an excited atom will   a. drop to a lower energy level.   b.…

A: When an atom absorbs a photon energy and gets excited.

Q: What is the lowest energy light blue,green,yellow or red

A: Order of the energy of lights

Q: Which wavelength has more energy Microwave or Radio wave? Why?

A: The waves that are produced during vibrations between electric field and magnetic field are known as…

Q: what are the factors affecting scattering of light?

A: The scattering of light is a physical process in which some form of light are forces to deviate from…

Q: If energy decreases, the wavelength of light increases and the frequency:A. increases.B.…

A: Wavelength can be defined as the distance between two consecutive crests or troughs of the wave. It…

Q: • The first quantum number is known as the quantum number and says that: A.Orbital quantum number;…

A:

Q: Select the choice that is not an example of energy. O a. a beam of light O b. a loud noise O c. an…

A: Energy is the capacity of doing or performing work . Energy manifests in many forms like potential…

Q: Which of the following electromagnetic waves is used to probe the crystalline sctructure of matter?…

A:

Q: 15. Lenses are coated with thin film to reduce a. Diffraction d. Refraction C. Reflection foronce…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: All of the following are used to characterize electromagnetic radiation except: A. Frequency B.…

A:

Q: 32 When the copper solution was heated in the flame, you saw a bluish green color. Explain how you…

A:

Q: What frequency of light is associated with the energy difference of 5.01 x 10-19 J? A. 756 nm B.…

A:

Q: What is the most abundant peak called?

A: The most abundant peak has to be defined.

Q: Energy absorbed when an electron is added to an isolated atom in the gaseous state „A O Energy…

A: Given that, Energy absorbed when an electron is added to an isolated atom in the gaseous state.

Q: What element will be the best conductor of electricity?

A: Electrical conductivity is a property of a substance by which it allows the passage of electricity…

Q: Which of the following best describes chemiluminescence Select one: O a. employs a fluorescent label…

A: The phenomenon of emission of visible light during a chemical reaction is known as…

Q: Question 1 Which light wave has more energy? O green light O microwaves O FM radio O photons

A: Given: Different types of waves. To find: Wave that has more energy. Solution: As we know that from…

Q: Calculate the frequency of a light with a wavelength of 488 nm. Give your answer to 3 sig figs.…

A: Given -> Wavelength= 488nm = 488 × 10-9 m (1nm = 10-9)

Q: Complete this sentence: Atoms emit visible and ultraviolet light Select one: a. as electrons move…

A: 1)  The sentence which explains the given statement             "Atoms emit visible and ultraviolet…

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.