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Chemical Concepts - Coggle Diagram

- - - - Symbol for Sodium is Na
    - - essential elements
        
        A chemical element required for an organism to survive, grow, and reproduce.
      - Trace elements
        
        An element indispensable for life but required in extremely minute amounts.
        
        are required by an organism in only minute quantities.
        
        Some trace elements, such as iron , are needed by all forms of life; others are required only by certain species.
- - - - A subatomic particle having no electrical charge (electrically neutral), with a mass of about 1.7 times 10 to the negative 24 g, found in the nucleus of an atom.
      - electrically neutral
    - - A subatomic particle with a single positive electrical charge, with a mass of about 1.7 times 10 to the negative 24 g, found in the nucleus of an atom.
      - Electrically Charged
      - Has one unit of positive charge
    - - A subatomic particle with a single negative electrical charge and a mass about 1 two-thousandths that of a neutron or proton. One or more electrons move around the nucleus of an atom.
      - Electrically Charged
      - Has one unit of negative charge
  - - - is written as a subscript to the left of the symbol for the element.
      - The number of protons in the nucleus of an atom, unique for each element and designated by a subscript.
    - - The total number of protons and neutrons in an atom’s nucleus.
      - The mass number is written as a superscript to the left of an element’s symbol.
    - - The total mass of an atom, numerically equivalent to the mass in grams of 1 mole of the atom.
  - - - An isotope (an atomic form of a chemical element) that is unstable; the nucleus decays spontaneously, giving off detectable particles and energy.
      - When the radioactive decay leads to a change in the number of protons, it transforms the atom to an atom of a different element.
- - - - The three-dimensional space where an electron is found 90 percent of the time