Respuesta :

Answer;

-Elements are composed of atoms

Explanation;

-A chemical element consists of atoms with a specific number of protons in the nucleus; this number is called the atomic number. The atoms of an element may differ in the number of neutrons; atoms with different neutron numbers are said to be different isotopes of the element.

-Elements are represented by a chemical symbol, with the atomic number and mass number sometimes affixed.

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