Examlex
Evaluate the limit.
Proton
Positively charged particle in the nuclei of atoms.
Electric Charge
A physical property of matter that causes it to experience a force when placed in an electromagnetic field.
Nucleus
The central and most important part of an atom, or a cell's organelle that contains genetic material.
Abundant Elements
Chemical elements that occur in large quantities in the Earth's atmosphere, crust, or oceans, or in the universe at large.
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