Answered

What is an atom?

A. A substance that cannot be changed into a simpler substance
B. A combination of two or more substances that are not chemically combined
C. A particle with a positive or negative charge
D. The basic building block or unit of matter



Answer :

GinnyAnswer

Final answer:

Atoms are the basic building blocks of matter, consisting of protons, neutrons, and electrons, which combine to form molecules.


Explanation:

Atoms are the smallest units of matter that retain all the chemical properties of an element. They consist of a nucleus containing protons and neutrons, surrounded by electrons. Atoms combine to form molecules which create the substances we see around us.


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