The total energy of electron in the ground state of hydrogen atom is – 13.6 eV. The kinetic energy of an electron in the first excited state is
A. 6.8 eV
B. 13.6 eV
C. 1.7 eV
D. 3.4 eV
Answer:D
The total energy of electron in the ground state of hydrogen atom is – 13.6 eV. The kinetic energy of an electron in the first excited state is
A. 6.8 eV B. 13.6 eV C. 1.7 eV D. 3.4 eV