The answer is 18.02 g/mol
Answer: Wavenumber of the radiation emitted is 
Explanation:
The relationship between wavelength and energy of the wave follows the equation:

where,
E = energy of the radiation = 
h = Planck's constant = 
c = speed of light = 
= wavelength of radiation = ?
Putting values in above equation, we get:


Thus wavenumber of the radiation emitted is 
Answer:
Ch4 Is an ion so the molecule yes 5
Explanation:
Sry for bad Engish me polish
im pretty sute the answer would be number 4.
mark brainliest :)