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The observed wavelength in the line spec...

The observed wavelength in the line spectrum of hydrogen atom were first expressed in term of a series of johann jakob Balmer a series teacher Balmer's empirical formula is `1/lambda=R_H(I/2^2-I/N^2)`________`n ge 3` ,`R_H=109678cm^-1` is Rydberg constant. Niele Bohr derived this expression theoretically in 1913 the formula is generalized to any uni-electronic species.
Calculate the longest wavelength in the Balmer series of singly ionized `He^+`

A

`2651Aoverset@`

B

`1641Aoverset@`

C

`6569Aoverset@`

D

`3249Aoverset@`

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The observed wavelength in the line spectrum of hydrogen atom were first expressed in term of a series of johann jakob Balmer a series teacher Balmer's empirical formula is 1/lambda=R_H(I/2^2-I/N^2)"________"n ge 3 ,R_H=109678cm^-1 is Rydberg constant.Niele Bohr derived this expression theoretically in 1913 the formula is generalised to any uni electronic species. How many lines in the spectrum will be observed when an electron returns from 7th shell to 2nd shell?

The wave number of the first line in the Balmer series of H-atom is 15200cm^(-1) . Calculate the wave number of the first line in the same series of Li^(2+) ion.

What hydrogen like ion has wavelength difference between the first lines of Balmer and Lyman series equal to 59.3 nm?( R_H=109678 cm^-1 )

The atomic spectrum of hydrogen contains a series of four lines havinng wavelengths 656.5, 486.3, 434.2 and 410.3 nm. Determine the wavelength of the next line in the same series [R_(H)=109678cm^(-1)] .

For balmer series in the spectrum of atomic hydrogen the wave number of each line is given by barv=R_H(1/(n_1^2)-1/(n_2^2)) where R_H is a constant and n_1 and n_2 are integers. Which of the following statement is correct? As wavelength decreases the lines in the series converge. The integer n_1 is equal to 2 (iii) The ionisation energy of hydrogen can be calculated from the wave number of these lines. (iv) The line of longest wavelength corresponds to n_2=3

What will be the wavelength of the light emitted due to a transition of electron from n = 3 orbit to n = 2 orbit in hydrogen atom? Given: the Rydberg constant for hydrogen atom is R_(H) = 1.09 xx 10^(7) m^(-1) .

What will be the wavelength of the light emitted due to a transition of electron from n=3 orbit to n=2 orbit in hydrogen atom ? Given : in the Rydbeg constant for hydrogen atom is R_H=1.09xx10^(7) m^(-1) .

H, He^(+), Li^(2+) are examples of atoms or ions with one electron each . The energy of such atoms when in the n-th energy state (according to Bohr,s theory , n=1,2,3…. =principal quantum number ) is E_n =(-13.6 Z^2)/(n^2) eV (1 eV =1.6xx10^(-19)J) . For the ground state ,n=1 . in order to raise the atom from the ground state to n=f , the suitable incident light should have a wavelength given by lambda=(hc)/(E_f-E_1) . But the atom cannot stay permanently in the f-energy state, ultimately , it comes to the ground state by radiating the extra energy , E_f-E_1 as electromagnetic radiation . The electron of the atom comes from n=f to n=1 in one or more steps using the permitted energy levels . As a result there is a possibility of emission of radiation with more than one wavelength from the atom. Planck's constant =6.63 xx10^(-34)J*s and velocity of light c=3xx10^(8)m*s^(-1) . The wavelength of radiation emitted for the transition of the electron of He^+ ion from n=4 to n=2 is

H, He^(+), Li^(2+) are examples of atoms or ions with one electron each . The energy of such atoms when in the n-th energy state (according to Bohr,s theory , n=1,2,3…. =principal quantum number ) is E_n =(-13.6 Z^2)/(n^2) eV (1 eV =1.6xx10^(-19)J) . For the ground state ,n=1 . in order to raise the atom from the ground state to n=f , the suitable incident light should have a wavelength given by lambda=(hc)/(E_f-E_1) . But the atom cannot stay permanently in the f-energy state, ultimately , it comes to the ground state by radiating the extra energy , E_f-E_1 as electromagnetic radiation . The electron of the atom comes from n=f to n=1 in one or more steps using the permitted energy levels . As a result there is a possibility of emission of radiation with more than one wavelength from the atom. Planck's constant =6.63 xx10^(-34)J*s and velocity of light c=3xx10^(8)m*s^(-1) . (i)What is the wavelength of the light incident on the atom to raise it to the fourth quantum level from ground state ?

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