Answer:
what are the options??? to choose the answer from?
Explanation:
Bigger is the correct answer. the faster an igneous rock cools the bigger the bigger the crystal size will be
It's inertia. A rule that you see every day, for example a brick will stay in the same spot unless a force acts on it.
Since energy cannot be created nor destroyed, the change in energy of the electron must be equal to the energy of the emitted photon.
The energy of the emitted photon is given by:
where
h is the Planck constant
f is the photon frequency
Substituting
, we find
This is the energy given to the emitted photon; it means this is also equal to the energy lost by the electron in the transition, so the variation of energy of the electron will have a negative sign (because the electron is losing energy by decaying from an excited state, with higher energy, to the ground state, with lower energy)