Interpretation : The energy required to eject an electron from a hydrogen atom when the electron is in the ground state and the second energy level is to be calculated. The energy required to eject a ground state electron from the lithium species is to be calculated.
Concept Introduction : The energy needed to remove an electron from an orbit of a hydrogen atom or an ion with only one electron can be calculated using Bohr's atomic theory. The ionization energy of the atom or ion is represented by a number. The formula of ionization energy is given as:
Where,
Answer to Problem 83A
The energy of hydrogen atom at ground state is
The energy of hydrogen atom at second energy state is
The energy of
Explanation of Solution
The formula of ionization energy is given as:
Where,
The atomic number of a hydrogen atom is 1 and n is 1 since it is the ground state.
To calculate the energy for hydrogen atom at ground state (n=1), substitute the values in the above formula:
If the hydrogen atom is in the second energy level (n=2), then the energy will be given as:
For
The energy is given as:
Chapter 5 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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