1. 13.6 Ev
2. Hydrogen Atom Energy Level Diagram

The energy of an electron in 1st bohr orbit of H atom is -13.6 eV. The possible energy value of electron in excited state of doubly ionised Lithium is what?

AIPMT 1993: If ionisation potential for hydrogen atom is 13.6 eV, then ionisation potential for He+ will be (A) 54.4 eV (B) 6.8 eV (C) 13.6 eV (D) 24. Energi elektron atom hidrogen pada tingkat dasar = – 13,6 eV, maka energi yang dipancarkan elektron ketika bertransisi dari lintasan n = 2 ke lintasan n = 1 adalah A. Pembahasan / penyelesaian soal. The voltage V in volts (V) is equal to 1.602176565×10-19 times the energy E in electron-volts (eV), divided by the electrical charge Q in coulombs (C). E = (13.6 eV) 1/n f 2 - 1/n i 2 Atoms can also absorb photons. If a photon with an energy equal to the energy difference between two levels is incident on an atom, the photon can be absorbed, raising the electron up to the higher level. The electron in a hydrogen atom is in the n = 2 state.

1 Atomic Unit Of Energy to common energy units; 1 au = 4.359744E-18 joules (J) 1 au = 4.359744E-21 kilojoules (kJ) 1 au = 1.918E-18 calories (cal) 1 au = 1.918E-21 kilocalories (kcal) 1 au = 70273 electron volt (eV) 1 au = 1.21104E-21 watt hour (Wh) 1 au = 1 atomic unit of energy (au) 1 au = 1.918E-27 tons of TNT (tTNT) 1 au = 3.387E-18 foot.

1 Answer

Explanation:

Energy of an electron in hydrogen like species in #'n'^'th'# shell is given by

#'E' = -13.6 'Z'^2/'n'^2 'eV'#

For electron in first orbit of #'_3^7'Li'^(2+)#

#'E'_1 = -13.6 xx 3^2/1^2 'eV' = -122.4 'eV'#

For electron in second orbit (#'1st'# excited state) of #'_3^7'Li'^(2+)#

13.6 Ev

Hydrogen Atom Energy Level Diagram

#'E'_2 = -13.6 xx 3^2/2^2 = -30.6 'eV'#

Energy of electron in an orbit after #'n'^'th'# excited state

#'E'_'ne' = -13.6 × 3^2/('n' + 1)^2 'eV' = -122.4/('n' + 1)^2 'eV'#

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