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B-town chem PhT M2

Element, atom, molecule, subatomic particles, oxidation #, metal, non-metal, etc

QuestionAnswer
Ion Atoms that desire their valence PEL to be 8
Atom Smallest units of matter
Proton Subatomic particle with a + charge
Neutron Subatomic particle with no charge
Electron Subatomic particle with a - charge
RedOx Reduction & Oxidation - the process of gaining (reduction) or losing (oxidation) electrons
Free State When the # of protons is equal to the # of electrons.
Atomic number The number of protons or electrons
Atomic symbol The 1 or 2 letters that represent an element on the Periodic Table
Columns Groups or families - They have chemical similarities and are classified as either representative elements (Group A, I through VII) or transition elements (Group B, thats groups VIII, IX and X).
Rows Periods - Organized by the valence of the outermost PEL
PEL Principle Energy Levels - The levels and sublevels where the electrons hang out
Two N Squared This formula determines how many electrons each PEL can hold (You'll have to write it out using letters for Study Stacks)
Cation An ion with a + charge. It has more protons than electrons.
Anion An ion with a - charge. It has more electrons than protons.
Isotope Atoms of the same element that have the same number of protons and electrons (atomic #), but a different number of neutrons (mass #).
Atomic weight The # of protons and neutrons in an atom.
Atomic mass scale (AMU) Based on an arbitrary value of exactly 12 units per an atom of carbon-12
Valence The # of electrons in the outermost PEL
Nucleus The center of an atom
Metal An element that carries a positive charge
Non-metal An element that carries a negative charge
Octet Rule The outermost PEL of elements that have valence energy level of more than 3 are trying to reach a stable configuration of 8 electrons
Oxidation Number Positive (+) or negative (-) number assigned to an element after electrons are gained or lost
Ionic bond The force of attraction between two ions of opposite charge
Covalent bond Formed by sharing of electrons between atoms
Element A pure chemical substance consisting of one type of atom distinguished by its atomic number
Molecule An electrically neutral group of at least two atoms held together by covalent bonds
Created by: 1505882730