Examlex
All of the following were persistent trends in the upper-class eighteenth-century European family EXCEPT
Protons
Positively charged particles found within an atom's nucleus, contributing to the atom's mass and defining the element.
Electrons
Subatomic particles with a negative charge, orbiting the nucleus of an atom, involved in chemical bonds and electricity.
Chemical Equation
A chemical equation is a symbolic representation of a chemical reaction, displaying the reactants and products with their respective chemical formulas.
Reactant
Substance that participates in a chemical reaction. Compare with product.
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