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HomeHomework HelpchemistryAtomic Structure Basics

Atomic Structure Basics

Atomic structure refers to the arrangement of subatomic particles within an atom, consisting of protons and neutrons located in the nucleus, while electrons orbit the nucleus in defined energy levels. Protons carry a positive charge, neutrons are neutral, and electrons possess a negative charge, collectively determining the atom's identity and chemical properties.

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Chemistry
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Atomic structure is fundamental to understanding chemistry and the nature of matter. Atoms consist of protons, neutrons, and electrons, each playing a crucial role in defining the properties of elements. Protons determine the atomic number and identity of an element, while neutrons contribute to ato...

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Key Terms

Atom
The smallest unit of an element, consisting of protons, neutrons, and electrons.

Example: An oxygen atom has 8 protons.

Proton
A positively charged particle found in the nucleus of an atom.

Example: The number of protons defines the element's atomic number.

Neutron
A neutral particle found in the nucleus of an atom.

Example: Neutrons help stabilize the nucleus.

Electron
A negatively charged particle that orbits the nucleus of an atom.

Example: Electrons are involved in chemical bonding.

Nucleus
The central part of an atom, containing protons and neutrons.

Example: The nucleus is dense and positively charged.

Atomic Number
The number of protons in the nucleus of an atom, defining the element.

Example: Carbon has an atomic number of 6.

Related Topics

Chemical Bonds
Study how atoms connect to form molecules through sharing or transferring electrons.
intermediate
Periodic Table
Learn how elements are organized based on their atomic structure and properties.
intermediate
Nuclear Chemistry
Explore the reactions and properties of atomic nuclei, including radioactivity.
advanced

Key Concepts

AtomsProtonsNeutronsElectrons