Answer : The correct option is,
Solution :
Formula used :
where,
E = change in energy
h = Planck’s constant =
c = speed of light =
= wavelength = 2.21 m
Now put all the given values in the above formula, we get the energy of an atom.
Therefore, the energy of an atom is,
Answer:
Acidic solution used to clean a crucible
Explanation:
This liquid dissolves alcoholic solvents such as crucible, that is why it was selected as the ideal for cleaning.
Although it would be ideal to know in detail which chemical compound is the one you want to clean so that the cleaning technique has better effectiveness.