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Answer in one sentence: Name the element that shows the simplest emission spectrum. - Chemistry

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प्रश्न

Answer in one sentence:

Name the element that shows the simplest emission spectrum.

एक पंक्ति में उत्तर
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उत्तर

The element that shows the simplest emission spectrum is hydrogen.

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अध्याय 4: Structure of Atom - Exercises [पृष्ठ ५४]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
अध्याय 4 Structure of Atom
Exercises | Q 5. (B) | पृष्ठ ५४

संबंधित प्रश्न

Explain Brackett series of spectral lines for the hydrogen atom.

Derive the expression for the energy of an electron in the atom.


The radii of Bohr orbit are directly proportional to ______ 


For the hydrogen atom, the minimum excitation energy ( of n =2) is ______


If aO is the Bohr radius and n is the principal quantum number then, state the relation for the radius of nth orbit of the electron in terms of Bohr radius and principal quantum number. 


What is the energy of an electron in a hydrogen atom for n = ∞?  


Starting with 𝑟 = `(ε_0h^2n^2)/(pimZe^2),` Show that the speed of an electron in nth orbit varies inversely to principal quantum number. 


Calculate the shortest wavelength in the Paschen series if the longest wavelength in the Balmar series is 6563 Ao


Which of the following series of transitions in the spectrum of hydrogen atom falls in ultraviolet region?


The radius of electron's second stationary orbit in Bohr's atom is R. The radius of the third orbit will be ______


In Bohr's model of hydrogen atom, the period of revolution of the electron in any orbit is proportional to ______.


According to Bohr's theory, the expression for the kinetic and potential energy of an electron revolving in an orbit is given respectively by ______.


For an electron, discrete energy levels are characterised by ____________.


If m is mass of electron, v its velocity, r the radius of stationary circular orbit around a nucleus with charge Ze, then from Bohr's second postulate, the kinetic energy `"K.E." = 1/2"mv"^2` of the electron in C.G.S. system is 2 equal to ____________.


Which of the following models was successful in explaining the observed hydrogen spectrum?


Angular speed of an electron in the ground state of hydrogen atom is 4 × 1016 rad/s. What is its angular speed in 4th orbit?


When an electron in hydrogen atom jumps from third excited state to the ground state, the de-Broglie wavelength associated with the electron becomes ____________.


In any Bohr orbit of hydrogen atom, the ratio of K.E to P.E of revolving electron at a distance 'r' from the nucleus is ______.


When an electron in a hydrogen atom jumps from the third orbit to the second orbit, it emits a photon of wavelength 'λ'. When it jumps from the fourth orbit to third orbit, the wavelength emitted by the photon will be ______.


The radius of orbit of an electron in hydrogen atom in its ground state is 5.3 x 10-11 m After collision with an electron, it is found to have a radius of 13.25 x 10-10 m. The principal quantum number n of the final state of the atom is ______.


The third line of the Balmer series, in the emission spectrum of the hydrogen atom, is due to the transition from the ______.


Which of the following series of transition of hydrogen spectrum falls in visible region?


The value of Rydberg constant in joule is ______.


Ultraviolet light of wavelength 300 nm and intensity 1.0 Wm−2 falls on the surface of a photosensitive material. If one percent of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of 1.0 cm2 of the surface is nearly ______.


What is the origin of spectral lines? Obtain an expression for the wave number of a line in hydrogen spectrum.


Find the momentum of the electron having de Broglie wavelength of 0.5 A.


Draw a near labelled energy level diagram for hydrogen atom.

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