The energy of a wave is calculated by E = hf where f is the frequency and h is the Planck's constant (6.626 ×10^-34 J/s).
The formula may be written as E= hc/λ where c is the speed of light 3×10^8 m/s and λ is the wavelength.
Thus energy = (6.626 × 10^-34)×(3 ×10^8)/ (656.3 nm)
= 3.0267 × 10^ -19 J
Therefore, the initial energy level of an electron is 3.0267 × 10^-19 joules.
Answer:
the symbol that is missing might be 2.
Explanation:
I am not 100% on this, so correct me if I am wrong.
A. deposition
this means that it was moved from one place to another and can be transported by ice, water, gravity, or wind.
Answer:
The concentration of one or more of the products is small.
The reaction will not proceed very far to the right.
The reaction will generally form more reactants than products
Explanation:
We often write
K =[Products]/[Reactants]
Thus, if K is small
- We have fewer products than reactants
- We have more reactants than products
- The position of equilibrium lies to the left
A. is wrong. Usually, if K < 1, the concentration of reactants is greater than that of the products.