Atomic StructureHard
Question
Sodium atoms emit a spectral line with a wavelength in the yellow, 589.6 nm. What is the approximate difference in energy between the two energy levels involved in the emission of this spectral line?
Options
A.3.37 × 10–19 J
B.2.1 eV
C.48.35 kcal/mol
D.All of these
Solution
$\Delta E = \frac{1240}{589.6} = 2.1\text{ eV = 3.37} \times \text{1}\text{0}^{- 19}\text{ J = 48.5 kcal/mol}$
Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
Which of the following element will have the same number of electrons in s and as well as p-type of orbitals?...Consider the ground state of Cr atom (Z = 24). The numbers of electrons with the azimuthal quantum numbers, l = 1 and 2 ...Which of the following element is represented by electronic configuration1s22s22px12py12pz1 ?...′e′ configuration of element with minimum size will be :-...X X1 + H2O → HX1 + HOXSelect the correct statement for above reaction :...