Examlex
Which ephemeral art form, known to only a few practitioners and destroyed after each ceremony, accompanies some of the most sacred rituals of the Navajo?
Compound
A substance made up of two or more different elements chemically combined in fixed proportions.
Elements
Pure chemical substances consisting of a single type of atom, distinguished by their atomic number, which is the number of protons in their atomic nuclei.
Gold Foil Experiment
An experiment conducted by Ernest Rutherford which demonstrated that the atom has a tiny, dense nucleus by observing the deflection of alpha particles.
Rutherford
A term often referencing Ernest Rutherford, a physicist known for his discoveries in the field of nuclear physics and for the Rutherford model of the atom.
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