Chemistry of Matter Flashcards
(48 cards)
Elements of Interest for Estheticians;
Creepy Organs Hear Nutty Snakes
Carbon Oxygen Hydrogen
Nitrogen Sulfur
Periodic Law
Unifying concept used to organize elements and their
similarities
Atomic Number
indicates number of protons in a
single particular element; basis for organization
Elements
basic units of matter that cannot be
broken down into simpler substances by any chemical reaction; pure substances
Number of Elements
92 Naturally occurring elements in nature
Energy
the ability to do work to accomplish some
change
• Changes in matter always involve either gain or
loss of energy
Sublimation
solid passing into gaseous state
without melting
Chemical Change
Change in a substance that creates a new substance
with different material characteristics from those of the
original substance
Physical Change
Change in the physical characteristics of a substance
without creating a new substance possessing a distinct material composition
Matter
anything that occupies space, 3 states of matter
States of Matter
Solid: definite weight, volume, shape
Liquid: Def. Weight, Volume, No shape
Gas: Def. Weight, Indefinite Volume and Shape
Organic Chemistry
Deals with all matter that is now living or was alive at
one time; study of matter containing carbon, which is
present in all plants and animals
Inorganic Chemistry
Deals with matter that was never living; and does not
contain carbon
Biochemistry
The study of chemical reactions, such as growth,
reproduction and respiration, that occur within a
living organism;chemicals related to life processes and their reactions
within the body
Chemistry
Scientific study of matter; physical and chemical changes
affecting matter and energy changes that accompany these
processes
Atoms
Smallest complete unit of an element; each element consists of identical atoms; consist of protons,
neutrons, and electrons
Protons
positive electrical charge; number of protons differentiates one element from another
Neutrons
no electrical charge; neutrally charged
Electrons
negative electrical charge; enable atoms to unite with other atoms to form bonds
Nucleus
protons and neutrons packed tightly to
form dense core at the center of the atom
Free Electron
name given to an electron in the
outermost orbit that is easily moved from its orbit
Free Electron Behaviors
• If another atom has a shortage of electrons, free
electron will try to move to that atom
• Atoms not missing any electrons in outer shell are
considered stable and electrically neutral
• Unstable atoms are reactive; seek other atoms with
which they can share electrons to complete outer
shell; when they combine they make molecules
Molecule
When unstable atoms combine chemically by sharing electrons a molecule is formed Smallest particle of a compound; has all the chemical properties of that compound; two or more atoms joined by
chemical bond
Molecules
two or more of the same atoms joined
together by one or more chemical bonds
• Described using the chemical symbols of each element