Consider a Hydrogen atom in the 3rd excited state (n = 4). The maximum wavelength of light that can be emitted is
9.7 x 10^-8 m
1.9 x 10^-6 m
1.03 x 10^-7 m
2.5 x 10^-5 m

The maximum wavelength of light that can be emitted is

Explanation:

= Wavelength of radiation

E= energy

For wavelength to be maximum, energy would be minimum, i.e the electron will jump from n=4  level to n =3

Using Rydberg's Equation:

Where,

= Rydberg's Constant  =

= Higher energy level = 3

= Lower energy level = 4

Z= atomic number = 1 (for hydrogen)

Thus the maximum wavelength of light that can be emitted is

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.