Parts Of An Atom. Atoms combine to form pure elements, compounds, and complex forms like computers and phones. An atom is the smallest unit of ordinary matter that forms a chemical element.
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The three parts of the atom are protons (positively charged), neutrons (neutral charge), and electrons (negatively charged). The term atom comes from the greek word for indivisible, because it some atomic nuclei are unstable because the binding force varies for different atoms based on the size of the nucleus. Atoms combine to form pure elements, compounds, and complex forms like computers and phones.
The atomic number of an element describes the total number of protons in its nucleus.
Atoms are the basic building blocks of ordinary matter. Protons:positively charged particles neutrons:neutrally charged particles electrons:negatively. Their combined weights are called the atomic weight of an element. All atoms of the same element are exactly alike;
