Examlex
What is the almost-exclusive subject of Paleolithic paintings?
Protons
Positively charged particles found within the nucleus of an atom.
Electrons
Subatomic particles with a negative electric charge, found in all atoms and acting as the primary carrier of electricity in solids.
Building Block
A fundamental component or base element used for constructing larger structures or systems.
Isotope
Variants of a particular chemical element which differ in neutron number, and consequently in nucleon number, but share the same number of protons.
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