Are the Balmer series visible to human’s naked eyes? Explain.

Q: Describe what is the photoelectric effect? How did experimental observations of this phenomenon…

A: The photoelectric effect deals with metals emitting electrons when light shines on them. This…

Q: 2. The wavelengths of the visible bands from a Helium lamp are given below. Calculate the…

A:

Q: An atomic emission spectrum of hydrogen shows three wavelengths: 121.5 nm, 102.6 nm, and 97.23 nm.…

A: The expression relating energy and wavelength of an atom is shown below.…

Q: The ratio of the wavelength of the second and the last line of Balmer series of hydrogen atom is

A: The ratio of the wavelength of the last line of Balmer series of hydrogen atom has to be given,

Q: Give some uses of fluorescence in medical field?

A: Introduction: If a system absorbs radiant energy and then emits it partly or completely almost…

Q: The speed of light is _______?           equals frequency times wavelength     is the fastest…

A:

Q: What is the longest wavelength of electromagnetic radiation capable of ionizing this hydrogen atom…

A: Here, we must calculate longest wavelength of electromagnetic radiation capable of ionizing this…

Q: Calculate the maximum wavelength

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Q: Ozone in the stratosphere absorbs ultraviolet light of wavelengths shorter than 320 nm, thus…

A: Wavelength is defined as the distance between two crests and two troughs. It is represented by…

Q: What are the main features of quantum mechanics? Give atleast 10 applications of electromagnetic…

A: Quantum mechanics is a fundamental theory in that provides a description of the physical properties…

Q: An excited state electron in He+ first emits a photon with wavelength 25.629 nm when it relaxes to…

A:

Q: A particular laser consumes 200.0 Watts of electrical power and produces a stream of 2.55x1019 1061…

A:

Q: what is the wave number for the shortest wavelength transition in the balmer series of hydrogen…

A: The formula to calculate wave number is,

Q: arrange these three colors of visible light green,red,and blue in order to increase wavelenght

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

Q: In a future hydrogen-fuel economy, the cheapest source of H₂ will certainly be water. It takes 467…

A: The energy of the photon that can be related to the frequency is furnished as follows: E=hν…

Q: e table below you will find three descriptlons of sclentIsts engaging In activities that are p…

A: The missing word in the given discription given below.

Q: How does electron diffraction demonstrate the complementarity of the wave nature and particle nature…

A: The properties which eliminate each other are referred as complementary properties

Q: The photoelectric work function for chromium metal is 422 kilojoules per mole of electrons ejected…

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

Q: Rearrange the Rydberg equation algebraically to make new expression for n2 in terms of n1 and…

A: Rydberg equation is given.

Q: Does a baseball in flight possess wave properties? If so, why can we not determine its wave…

A: Given : Baseball is present in flight mode.

Q: A diode laser emits at a wavelength of 987 nm. (a) In what portion of the electromagnetic spectrum…

A: Given data, Wavelength = 987 nm = 987 × 10-9 m time (t) = 32 s Total energy = 0.52 J (a) In what…

Q: he following questions relate to the wavefunction for the hydrogen-like atom shown in question 1. a.…

A: Since question 1 reference is not provided, proceeding in general terms of wave function and H-like…

Q: A diffraction experiment requires the use of electrons of wavelength 550 pm. Calculate the speed of…

A:

Q: It takes 412. kJ/mol to break a carbon-hydrogen single bond. Calculate the maximum wavelength of…

A:

Q: When metallic sodium is dissolved in liquid sodium chloride, electrons are released into the liquid.…

A: Calculation of energy E=hcλh=Planck's constantc=speed of light=3×108 m/sλ=wavelength Particle in…

Q: If you compare orbitals with different principal quantum numbers (n) but the same angular momentum…

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Q: A 0.22-caliber handgun fires a 27-g bullet at a velocity of 765 m/s. Calculate the de Broglie…

A: Wave behaviour of matter is described by de-broglie wavelength which is related to matter's momentum…

Q: The ‘fine‑structure constant’, α, plays a special role in the structure of matter; its approximate…

A: de Brgalie gives a relationship between wavelength, and momentum. It can be given as: λ=hp Where λ…

Q: Determine the de Broglie wavelength (in m) of a proton traveling at half the speed of light. (…

A: Given : speed of proton = 0.5 X speed of light  Since speed of light = 3.0 X 108 m/s Hence speed of…

Q: Discuss the physical origins of quantum mechanical tunnelling. How does tunnelling appear in…

A: According to Born interpretation, the probability density of a particle is equal to the square of…

Q: The line of longest wavelength in visible light for the emission spectrum of hydrogen, 656nm (Balmer…

A: Applying concept of hydrogen spectrum. 1/lemda = RH (1/n21- 1/n22)

Q: The speed of sound in dry air at 20 °C is 343 m/s and the lowestfrequency sound wave that the human…

A: Electromagnetic radiation is the energy that propagates through space in form of electromagnetic…

Q: The familiar phenomenon of a rainbow results from thediffraction of sunlight through raindrops. (a)…

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

Q: Bohr's model of the atom is a system consisting of a small, dense hucleus surrounded by orbiting…

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Q: In general, how do IR radiations compare in energetic magnitude with those of UV, X-rays and…

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Q: Excited Beryllium atoms radiate energy in what regions? a) infrared region only b) ultraviolet…

A: CORRECT ANSWER IS OPTION ( C )

Q: (v) Describe how the px Py and pz orbitals are differentiated and named as such. (vi) Some people…

A: answer is descripted below

Q: Use Einstein's photoelectric equation to explain the laws of photoelectric effect. Electrons are…

A: The photoelectric effect is a phenomenon in which electrically charged particles are related to a…

Q: Excited Helium atoms radiate energy in what regions? please explain a)infrared region only b)…

A: Excited helium atom radiate energy in the "visible region". As we all have seen Helium lamps are…

Q: Explain the wave behavior known as diffraction. Draw the diffraction pattern that occurs when light…

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Q: n atomic emission spectrum of hydrogen shows three wavelengths: 121.5 nm,102.6 nm, and 97.23 nm…

A: We are given some wavelengths, and we have to assign them to their suitable electron transition in…

Q: calculate the energy absorbed per mole of O2 produced, giving the answer in kJ/mol.

A: Given: λ=275 nm O3(g) + hν → O2(g) + O(g)  Formula used: E=hcλ Where, h is the Planck's constant c…

Q: (a) What is the relationship between the wavelength and thefrequency of radiant energy? (b) Ozone in…

A: The given question can be solved on the basis of the prior knowledge of the basics of spectroscopy.

Q: Consider two beams of the same yellow light.Imagine that one beam has its wavelength doubled ,the…

A: The relationship between the energy (E) and the wavelength (λ) of the electromagnetic radiation is…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.