• 1. Atom | Definition, Structure, History, Examples, Diagram, & Facts

  britannica.com

  Link: https://www.britannica.com/science/atom

  Description: WEBMar 26, 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. As such, the atom is the basic building block of chemistry.

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• 2. Atom - Wikipedia

  wikipedia.org

  Link: https://en.wikipedia.org/wiki/Atom

  Description: WEBAtoms are the basic particles of the chemical elements. 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.

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• 3. What Is an Atom? Atom Definition - Science Notes and Projects

  sciencenotes.org

  Link: https://sciencenotes.org/what-is-an-atom-atom-definition/

  Description: WEBNov 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. Every solid, liquid, gas, and plasma consists of neutral or ionized atoms.

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• 4. Introduction to the atom (video) | Khan Academy

  khanacademy.org

  Link: https://www.khanacademy.org/science/biology/chemistry--of-life/elements-and-atoms/v/introduction-to-the-atom

  Description: WEBIntroduction to the atom. Learn how atoms are made up of protons, neutrons, and electrons. Elements are defined by the atomic number, the number of protons in the nucleus. The mass of an atom is determined by the total number of protons and neutrons. Created by Sal Khan.

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• 5. What is an atom? Facts about the building blocks of the universe

  livescience.com

  Link: https://www.livescience.com/37206-atom-definition.html

  Description: WEBDec 15, 2021 · Atoms are made up of a nucleus, protons and electrons. Atoms consist of a nucleus made of protons and neutrons orbited by electrons.(Image credit: Rost-9D via Getty Images) Jump to: Subatomic...

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• 6. Basic concept and structure of an atom | Britannica

  britannica.com

  Link: https://www.britannica.com/summary/atom

  Description: WEBatom, 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.

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• 7. 2.2: Atomic Structure - Chemistry LibreTexts

  libretexts.org

  Link: https://chem.libretexts.org/Courses/Brevard_College/CHE_103_Principles_of_Chemistry_I/02%3A_Atoms_and_Molecules/2.02%3A_Atomic_Structure

  Description: WEBMay 18, 2021 · Figure 2.2.1 2.2. 1: The Structure of the Atom. Atoms have protons and neutrons in the center, making the nucleus, while the electrons orbit the nucleus. The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different.

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• 8. The Structure of the Atom – Introductory Chemistry

  pressbooks.pub

  Link: https://uen.pressbooks.pub/introductorychemistry/chapter/the-structure-of-the-atom/

  Description: WEBAn 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.

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• 9. Matter, elements, and atoms | Chemistry of life (article) - Khan Academy

  khanacademy.org

  Link: https://www.khanacademy.org/science/ap-biology/chemistry-of-life/elements-of-life/a/matter-elements-atoms-article

  Description: WEBAn atom is the smallest unit of matter that retains all of the chemical properties of an element. Introduction. What is your body made of? Your first thought might be that it is made up of different organs—such as your heart, lungs, and stomach—that work together to keep your body going.

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• 10. Structure of atom | Khan Academy

  khanacademy.org

  Link: https://www.khanacademy.org/science/physical-chemistry-essentials/x98cdf762ed888601:structure-of-atom

  Description: WEBPhysical Chemistry (Essentials) - Class 11. Unit 2: Structure of atom. 300 possible mastery points. Mastered. Proficient. Familiar. Attempted. Not started. Quiz. Unit test. Discovery of sub-atomic particles. Learn. The history of atomic chemistry. Discovery of the electron and nucleus. Atomic models. Learn. Rutherford’s gold foil experiment.

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