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An atom consists of a nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished from each other by the number of protons that are in their atoms. For example, any atom that contains 11 protons is sodium, and any atom that contains 29 protons is copper.
Jul 14, 2024 · Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element.
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Nov 19, 2023 · An atom is the basic building block of matter, consisting of protons, neutrons, and electrons. An atom is the smallest unit of matter that forms a chemical element and cannot be divided using any chemical means.
An atom is the smallest unit of matter that retains all of the chemical properties of an element. Atoms combine to form molecules, which then interact to form solids, gases, or liquids. For example, water is composed of hydrogen and oxygen atoms that have combined to form water molecules.
atom, Smallest unit into which matter can be divided and still retain the characteristic properties of an element. The word derives from the Greek atomos (“indivisible”), and the atom was believed to be indivisible until the early 20th century, when electrons and the nucleus were discovered.
About this unit. This unit is part of the Chemistry library. Browse videos, articles, and exercises by topic.
Jan 24, 2024 · Since an atom contains equal number of protons and electrons, it has no overall charge: the positive charges on all the protons are exactly balanced by the negative charges on all the electrons. But sometimes an atom can gain or lose an electron to become what's called an ion.
Feb 29, 2024 · Thus, an atom can also be defined as the simplest structural unit of an element that retains all its properties. There are 94 natural elements and 24 artificial elements that exist today. Structure with Parts
If you look at an atom on average, if you say this is my atom. Let's say I had two atoms that are bonded to each other. And I were to say, how much of this is actual stuff?
