• vocab week 2-1

    1. Electron Configuration– Is the arrangement of electrons in an atom.
    2. Aufbau Principle– States that the structure of each successive element is obtained by adding one proton to the nucleus of the atom and one electron to the lowest energy orbital that is available.
    3. Hund’s Rule– States that for an atom in the ground state, the number of unpaired electrons is the maximum possible and these electrons have the same spin.
    4. Pauli exclusion principle - no two electrons within an atom (or ion) can have the same four quantum numbers.
    5. Ground State– Is the lowest energy state of quantized system.
    6. Heisenberg Uncertainty Principle– State that determining both the position and velocity of an electron or any other particle simultaneously is impossible.
    7. Noble-gas Configuration– Is an outer main energy level fully occupied, in most cases, by eight electrons.
    8. Orbital– Is a region in an atom where there is a high probability of finding electrons.
    9. Quantum Number– Is the number that specifies certain properties of electrons.
    10. Quantum Theory– Is the study of the structure and behavior of the atom and of subatomic particles from the view that all energy comes in tiny indivisible bundles


    vocab week 2-2

    No vocab for week 2-2


    vocab week 2-3

    No vocab for week 2-3


    vocab week 2-5

    1. Cation – positive ion, usually formed from metals
    2. Anion – negative ion, usually formed from non metals
    3. Ionic compound – a compound of cations and anions held together in a lattice structure
    4. Formula unit – the lowest ratio of ions found in an ionic compound
    5. Monatomic ion – ion formed from only one atom
    6. Binary compound – compound formed from two monatomic ions
    7. Polyatomic ion – ion formed from two or more atoms assuming a single charge
    8. Covalent bond – bond between atoms that share one or more electrons
    9. Molecular formula – chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound
    10. Octet rule - the statement that when atoms combine to form molecules they generally each lose, gain, or share valence electrons until they attain or share eight