What is the basic unit of an element that consists of a nucleus and electrons?

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Multiple Choice

What is the basic unit of an element that consists of a nucleus and electrons?

Explanation:
The basic unit of an element is the atom. An atom has a central nucleus containing protons and neutrons, with electrons orbiting around it. This structure is what gives each element its unique properties. When atoms bond, they form molecules; when atoms or molecules gain or lose electrons, they become ions; and when two or more elements join in fixed ratios, they form compounds. So the description of a unit that has a nucleus and electrons points to the atom.

The basic unit of an element is the atom. An atom has a central nucleus containing protons and neutrons, with electrons orbiting around it. This structure is what gives each element its unique properties. When atoms bond, they form molecules; when atoms or molecules gain or lose electrons, they become ions; and when two or more elements join in fixed ratios, they form compounds. So the description of a unit that has a nucleus and electrons points to the atom.

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