15 Questions
What is the definition of an energy level in an atom?
A region of definite energy within an atom that electrons can occupy
What is the purpose of a spectroscope?
To show the characteristic line spectrum of an element
What type of spectrum shows dark lines at specific wavelengths depending on the elements present?
Absorption Spectrum
According to Niels Bohr's theory, what happens when an electron moves from a higher energy level to a lower energy level?
A definite amount of energy is emitted in the form of light
What is the formula to calculate the difference in energy levels?
E2 - E1 = hf
What series is associated with excited electrons falling back to n=2?
Balmer series
What is used to measure the presence and amount of an element?
Atomic Absorption Spectrometer
What colour flame is produced when barium is burned in a flame test?
Yellow / green
What is the primary limitation of the Bohr theory?
It only worked well for hydrogen
What is the Heisenberg uncertainty principle?
It is not possible to determine the exact position and velocity of an electron at the same time
What is the region around the nucleus where the probability of finding an electron is relatively high?
Atomic orbital
What is the Aufbau principle?
Electrons will occupy the lowest sublevel available
What are energy levels?
Regions of definite energy within an atom that electrons can occupy
What is an energy sublevel?
A group of atomic orbitals all of the same energy
What is the primary reason why the Bohr theory did not account for the existence of orbitals?
It did not take into account the wave-particle duality of electrons
Test your understanding of the electronic structure of atoms, including energy levels, spectra, and the different methods of energizing atoms. Learn about flame tests, spectroscopes, and the characteristic line spectra of elements.
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