Subatomic Particles:
* Neutron:
* Charge: Neutral (no charge)
* Location: Inside the nucleus of an atom
* Mass: Approximately 1 atomic mass unit (amu)
* Function: Contributes to the mass of the atom and helps hold the nucleus together.
* Electron:
* Charge: Negative (-)
* Location: Outside the nucleus, in a cloud of probability called an electron shell or orbital.
* Mass: Very small, nearly negligible compared to protons and neutrons.
* Function: Responsible for chemical bonding and the atom's electrical properties.
* Proton:
* Charge: Positive (+)
* Location: Inside the nucleus of an atom.
* Mass: Approximately 1 atomic mass unit (amu)
* Function: Determines the element's identity (atomic number). Also contributes to the mass of the atom.
The Nucleus:
* Location: The central core of an atom.
* Composition: Composed of protons and neutrons.
* Charge: Positive due to the presence of protons.
* Function: Holds most of the atom's mass and determines its atomic weight.
Key Relationships:
* Atomic Number: The number of protons in an atom's nucleus determines its atomic number, which defines the element.
* Atomic Mass: The total number of protons and neutrons in an atom's nucleus determines its atomic mass.
* Isotopes: Atoms of the same element can have different numbers of neutrons, leading to isotopes with the same atomic number but different atomic masses.
In Summary:
* Electrons orbit the nucleus and are responsible for chemical bonding.
* Protons and Neutrons reside in the nucleus and contribute to the atom's mass. The number of protons determines the element.
* The nucleus is the central core of the atom, containing most of its mass and carrying a positive charge due to the protons.
