Ions are:
Isotopes are atoms of the same element with:
The atomic number is the same in different isotopes of the same element:
Which part of Dalton's original atomic theory must be modified with the discovery of isotopes?
Who was the person to propose the theory of atomic structure based on line spectra?
The distinct pattern of colors emitted by excited atoms is called:
Under Bohr's theory of line spectra, the energy in atoms is:
When an electron is excited, the electron's "distance" from the nucleus:
In the normal or "ground" state, all of the electrons in an atom are:
The maximum number of electrons that may reside in the first energy level is:
How many electron volts are required to make hydrogen's electron "jump" from energy level 1 to level 3?
The existence of line spectra can be explained by:
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