Question

the amount of energy required to promote electron from first energy level to third energy level (in terms of joule/mol) for hydrogen electron is (here * represents power)*​

Answer 1

Answer:

idk

Explanation:

Answer 2

Answer:

The ionization enthalpy of a hydrogen atom is 1.312 ×10

6

J/mol. The energy required to excited electron in an atom from n=1 to n=2 is:

Explanation:

Energy of electron in first orbit =E

1

=−1312 kJ/mol

Energy of electron in secondorbit =E

2

=−

2

2

1312

=−328 kJ/mol

Hence, Energy required to excite a hydrogen electron from n=1 to n=2 =E

2

−E

1

=−328−(−1312)=984 kJ/mol