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Atomic Structure
Question | Answer |
---|---|
discovered the nucleus of an atom | rutherford |
proposed the planetary model for atomic structure | niel bohr |
stated the uncertainty principle | neisenberg |
discovered the electron | JJ Tomson |
stated that it is impossible to know the position and speed of an electron at the same time | heisenberg |
bombarded gold foil with helium nuclei | rutherford |
stated that electrons exist in specific energy levels | neils bohr |
used a cathode ray tube and discovered that electrons are negatively charged particles | JJ Tompson |
developed an equation to predict the probable location of an electron | schroedinger |
discovered the neutron | chadwick |
calculated that the nucleus was 1/10000 the diameter of the atom | rutherford |
developed an equations which is used to find the energy of photon of light | pianck |
a series of bands of colors emitted by excited atom | emission light specturm |
the lowest energy state of an atom | ground state |
an energized stat of an atom | excited state |
an instrument used to measure the wavelength of light | spectrometer |
an equation for finding the energy of a wave | E=h.V |
the theory that describes waves at teh atomic levels | quantum theory |
an amount of energy that can be absorbed or released | quantua |
packets of lights given off the excited atoms | photon |
stated the atomic theory | John Dalton |
compounds have a definite compositions by mass | law of defini |