Unit One Exam Flashcard

energy level
distance electrons are from the nucleus
orbitals
paths the electrons follow around the nucleus
valence electrons
electrons in the highest energy level of the atom
core electrons
all electrons in the atom except for the valence electrons
Lewis structures
diagrams showing how many valence electrons an atom has
octet rule
a rule in which states that when an atom has 8 electrons it is full and stable
molecule
multiple atoms grouped together and held by molecular bonds
molecular compound
when molecules have been joined together by a bond
covalent bond
when a pair of electrons are being shared to join elements
lone pairs
pairs of electrons in a Lewis Structure that are not being shared
double bond
when 2 pairs of electrons are being shared between atoms
organic compound
molecules with an abundance of carbon; commonly known as the molecules of life commonly found in DNA or protein
reactants
what a chemical reaction occurs to
products
the outcome of a chemical reaction
synthesis reaction
a type of chemical reaction where there are 2 reactants and 1 product
a+b= ab
decomposition reaction
a type of chemical reaction where there is 1 reactant and 2 products
ab= a+b
acid base reaction
when a hydrogen ion is bonded and electrons are lost within a chemical reaction
a+h(+) = ah(+)
ah= a(-)+h(+)
condensation reaction
a chemical reaction where water is produced
chemical reaction
a process where a substance is altered
polymer
a molecular structure made up of monomers
monomer
a single molecule which can be bonded with other molecules to form polymers.
hydrogen ion
a positively charged hydrogen particle that is positive because an electron was lost through an acid base reaction

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