Answer:
The wavelength for the transition from n = 4 to n = 2 is<u> 486nm</u> and the name name given to the spectroscopic series belongs to <u>The Balmer series.</u>
Explanation
lets calculate -
Rydberg equation-
where , is wavelength , R is Rydberg constant ( ), and are the quantum numbers of the energy levels. (where )
Now putting the given values in the equation,
Wavelength
= = 486nm
<u> Therefore , the wavelength is 486nm and it belongs to The Balmer series.</u>
oops pls forgive me I accidentally did the wrong question.
It is B: Fixed volume, takes the shape of the container
B. Most rocks are composed of single mineral