Answer:
= 261 nm
Silver is not a good choice.
Explanation:
Where,
h is Plank's constant having value
c is the speed of light having value
is the wavelength of the light
Given that:- Energy = ![7.59\times 10^{-19}\ J](https://tex.z-dn.net/?f=7.59%5Ctimes%2010%5E%7B-19%7D%5C%20J)
![7.59\times \:10^{26}\times \lambda=1.99\times 10^{20}](https://tex.z-dn.net/?f=7.59%5Ctimes%20%5C%3A10%5E%7B26%7D%5Ctimes%20%5Clambda%3D1.99%5Ctimes%2010%5E%7B20%7D)
= 261 nm
Visible range has a spectrum of 380 to 740 nm
So, Silver is not a good choice.
Answer: Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus.
so C would seems to be right.
Explanation: The energy of an electron depends on the size of the orbit and is lower for smaller orbits. Radiation can occur only when the electron jumps from one orbit to another. The atom will be completely stable in the state with the smallest orbit, since there is no orbit of lower energy into which the electron can jump.
Answer:
77.173g
Explanation:
we have been given the number of moles contained in CH thus we can find the molar mass of CH and then calculate for the mass