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30 Cards in this Set
- Front
- Back
Hertz |
the SI unit of frequency |
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atomic orbital |
region outside the nucleus where there is a high probability of finding an electron |
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Spectrum |
a range of colors seen when light passes through a prism |
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atomic emission spectrum |
lines of colored light obtained by passing the light emitted by an element through a prism |
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quantum of energy |
the amount of energy required to move an electron from one energy level to the next higher one |
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amplitude |
the height of a wave from the origin to the crest |
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wavelength |
the distance between crests of waves |
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energy level |
the region around an atomic nucleus where an electron is likely to be moving |
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Aufbau principle |
electrons enter orbitals of lowest energy first |
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frequency |
the number of wave cycles that pass a given point per unit of time |
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how many orbitals are in each energy level |
1- 1 2-3 3-5 4-7 |
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S^? p^? D^? f^? |
s2 p6 d10 f14 |
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what is the max # of electrons that can occupy the 1,2,3,4 principle energy levels |
1-2
2-8 3-18 4-32 |
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the formula 2n^2 represents what |
the max number of electrons that can occupy an energy level |
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in order to occupy the same orbital, two electrons must have.... |
opposite spin |
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stable electron configurations are likely to contain |
filled energy sublevels |
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according to hunds rule, when electrons occupy orbitals of equal energy, one electron enters each orbit until: |
all the orbitals contain one electron with spins parallel |
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the quantum mechanical model of the atom is... |
concerned with the probability of finding an electron in a certain position |
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equation to find wavelength or the speed of light |
c=(wavelength)x(frequency- v) |
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equation to find energy |
E= (h- planks constaint)x(frequency) |
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What is the max number of electrons that can occupy each of the first five principal energy levels? |
1-2 2-8 3-18 4-32 5-32 |
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why does the 5s sublevel fill before any electrons are added to each of the 4d sublevel |
5s is less energy |
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ground state |
lowest energy level for a given electron |
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photoelectric effect |
a process in which electrons are ejected by metas when certain wavelengths of light shine on them |
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photon |
quantum of light |
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Heisenberg uncertainty principle |
It is impossible to know both the velocity and the position of a particle at the same time |
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de Broglie's equation |
predicts that all matter exhibits wavelike motions |
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what is the highest percent for probability |
90% |
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Planks constant |
6.626 x 10^-34 |
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2 electron configuration exeptions |
chromium [ar]4s1 3d5 copper [ar]4s1 3d10 |