Across
- When an electron absorbs energy and goes up an energy level, it is said to be in the ____ state
- An electron emits energy with a frequency of 2 x 10^15 Hz. This light is not in the visible spectrum. It is actiually _____ light.
- This is true, about how electrons absorb and emit energy. "Up Absorb, Down _____"
- Since this element is so simple, it gives off only 4 spectral lines when excited.
- When an electron in the n = 3 level aborbs 1.51 eV or more it will be ______
- An electron in a hydrogen atom drops from the n = ___ energy level to the n = 2 energy level. The energy of the emitted photon is 1.89 eV
- An electron in hydrogen can have only ____ different energies.
- When all the electrons in an atom have their minimum energy, the atom is said to be in the ______ state
- No element gives off the FULL ____ of colors
- It has been discovered that every element on the periodic table gives off a _____ set of spectral (color) lines.
- An electron in this element can only have nine different energies? (See Reference)
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Down
- Minimum energy needed to remove an electron from an atom. ____ energy
- Chemists and astronomers use atomic spectral lines to ____ unknown substances and the composition of stars.
- Name for a particle of light
- An electron in the b level of mercury has an energy of -5.7____ (see reference)
- When electrons go up an energy level, energy is____.
- Electrons in atoms are restricted in the _______they can possess, give off and absorb.
- A photon's energy varies directly with its___.
- When electrons go down an energy level, energy is____.
- When light is emitted from elctrons, the colors can be separated by a diffraction grating or a _____
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