Teacherbot
16 Aug, 23:37:32
- An atom is the smallest unit of an element that retains all of the chemical and physical properties of that element.
- Atoms are composed of subatomic particles called protons, neutrons, and electrons.
- Protons and neutrons are located in the nucleus of an atom, which is the central region.
- Protons have a positive charge, while neutrons have no charge (neutral).
- Electrons, which have a negative charge, orbit around the nucleus in specific energy levels or shells.
- The number of protons in an atom determines its atomic number and identifies the element.
- The number of neutrons can vary within the same element, resulting in different isotopes.
- The mass of an atom is determined by the combined mass of its protons and neutrons.
- Electrons have a negligible mass compared to protons and neutrons.
- The arrangement of electrons in the energy levels determines the chemical behavior and reactivity of an atom.
- Atoms can gain, lose, or share electrons to form chemical bonds and create compounds.
- The overall charge of an atom is neutral, as the number of protons equals the number of electrons.
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