Answer:- Frequency is
.
Solution:- frequency and wavelength are inversely proportional to each other and the equation used is:

where,
is frequency, c is speed of light and
is the wavelength.
Speed of light is
.
We need to convert the wavelength from nm to m.
(
)

= 
Now, let's plug in the values in the equation to calculate the frequency:

=
or 
since, 
So, the frequency of the green light photon is
.
The answer to that question would be Activation energy. If would like me to elaborate just let me know. :)
Answer: Electron
Explanation:
An orbital is a region in an atom where there is a high probability of finding an electron.
<span>The scientific knowledge that
was necessary for Schrodinger’s work is the Bohr’s model. Unlike the Bohr
model, the quantum model does not define the exact path of an electron. The electron
is likely to be in a less dense area of cloud.</span>
Answer:
Solids.
Explanation: Most elements are solids, only 11 are gases and 2 are liquids.