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An electron in unielectronic species A+x is present in nth orbit. The separation energy of that electron from nth orbit is 7.65 eV. The frequency of photon required to excite electron from nth orbit to (n + 2)th orbit is 1.025 × 1015 Hz. Mark the correct statement. a)The value of (n + 1) is 4 b) Element A is Beryllium c) Value of x is 2 d)Kinetic energy of electron in (n + 2) orbit is 1.51 eV

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n^{th}

orbit, the energy of an electron is

E_{n} = \frac{13.6}{n^{2}} eV

for a hydrogen atom. The energy required to take the electron from first orbit to second orbit will be,

n^{t h}

orbit, the energy of an electron

E_{n} = - \frac{13.6}{n^{2}} e V

for hydrogen atom. The energy required to take the electron from first orbit to second orbit will be

Q. The frequency of revolution of an electron in

n t h

f_{n}

. If the electron makes a transition from the

n t h

(n - 1) t h

orbit, then the relation between the frequency

(v)

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Q. Energy of an electron for hydrogen in

n^{t h}

E_{n} = - \frac{313.6}{n^{2}}

kcal/mol. Find the value of 'n', if the energy of electrons in a certain orbit is - 19.6kcal/mol.

Q. Energy of an electron for hydrogen in

n^{t h}

E_{n} = - \frac{313.6}{n^{2}}

kcal/mol. Find the value of 'n', if the energy of electrons in a certain orbit is - 19.6kcal/mol.

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