3D.4 Flashcards
what is a ground state
the lowest energy level of a system
what is excitation
an energy state for a system that is higher than its ground state
electrons can become excited by?
- absorbing a photon with the right amount of energy
2. when the atoms collide with other particles
what is the de-excitation of an electron
it is when an electron goes down from its excited state to its ground state releasing energy in a form of a photon
what is the ionizing energy
the minimum energy an electron is required to have to leave the atom from its ground state
what is the line spectrum
it is a series of individual lines showing the frequency present in each light source
how can you split a non-monochromic light
using a diffracting grating in which the diffraction is dependent on the wavelength
what is intensity
the amount of energy per unit area
what is the formula for intensity
power/area
