Calculate the 2nd ionisation enthealpy of Li^(2+) given for hydrogem En= - `frac(13.6)(n^2)` e.v.

Which one has higher ionisation enthalpy N_2 Or O_2 ?

If the principal quantum number of an energy state be n , the energy of a hydrogen atom, E= -(13.6)/(n^2)eV . Due to transition of electron from n=3 to n=2 level, what will be the energy of the photon emitted ?

Hydrogen atom in its ground state, is excited by means of monochromatic radiation of wavelength 975 Å . How many different lines are possible in the resulting spectrum ? Calculate the longest wavelength amongst them. Given, ionisation energy of hydrogen atom is 13.6 eV.

In case of hydrogen atom, calculate the wavelength of K_(alpha) line. Given energy of hydrogen atom in ground state =-13.6 eV,h=6.63xx10^(-34)j*s .

Determine the value of the de Broglie wavelength associated with the electron orbiting in the ground state of hydrogen atom ( given E_(n) = - (13.6//n^(2))eV and bohr radius r^(0) = 0.53Å ). How will the de Broglie wavelength change when it is in the first excited state?

Energy associated with the n-th orbit of H-atom is given by the expresion, E_(n)=(-13.6)/(n^2)eV . Show that E_((n+1))-E_(n)=(13.6xx2)/(n^(3))eV , when 'n' is very large.

Energy associated with nth orbit of H-atom is given by the expression, E_(n)=-(13.6)/(n^(2))eV . Show that E_((n+l))-E_(n)=(13.6xx2)/(n^(3))eV~, when 'n' in very large.

According to Bohr's atomic model the electrons move around the nucleus in a circular orbit the electrons can move only in that orbit in which a angular momentum of electrons I sintegral multiple of h/2pi i.e. mvr=nh/2 pi where n=principle quantum number r=radius of orbit v=velocity of electron h=plank's constant the energy of orbit in which electron is moving is given by E_n=-13.6(z^2/n^2)eV//"atom" The radius of which of the following orbits is the same as that of the first Bohr's orbit of hydrogen atom?

Define Ionisation potential. How it changes form left,to right in 2nd period?

Find the values of the following - (x) 4 ÷ 2frac(10)(13)