70 Q70 The energy of an electron in the third Bohr orbit of H atom is E - Chemistry - Classification of Elements and Periodicity in Properties

Question

70

Q70 The energy of an electron in the third Bohr orbit of H atom is
–E The energy of the electron in the Bohr's second orbits
is

(1) - 9 E (2) – 2 25 E

(3) – E 2 (4) – 4 E

Ravjot Kaur · Accepted Answer

Energy of an electron in Third Bohr orbit is -EEnergy in second Bohr orbit is =?Energy is nth orbit isEn=-13
6n2eVE3=-13 632eVE2=-13 622eVNowE3E2=-13 632eV-13
622eV  E3E2     = 49E2=9E34Given E3=-ESo, E2=-9E4
= -2 25E
Hence option (2) is correct

Regards

70 Q70. The energy of an electron in the third Bohr orbit of H atom is –E. The energy of the electron in the Bohr's second orbits is (1) - 9 E (2) – 2.25 E (3) – E 2 (4) – 4 E

70

Q70. The energy of an electron in the third Bohr orbit of H atom is –E. The energy of the electron in the Bohr's second orbits is

(1) - 9 E (2) – 2.25 E

(3) – $\frac{E}{2}$ (4) – 4 E