A&P CHAPTER 2: CHEMICAL BASICS OF LIFE Flashcards
CHEMISTRY
SCIENCE THAT DEALS WITH THE STRUCTURE OF MATTER
MATTER
DESCRIBES ALL THINGS OCCUPYING SPACE AND HAVING MASS
PROTONS
POSITIVE CHARGE
NEUTRONS
NEUTRAL (UNCHARGED)
ELECTRONS
NEGATIVE CHARGE
HOW IS ATOM’S MASS DETERMINED
NUMBER OF PROTONS AND NEUTRONS IN ITS NUCLEUS
ATOMIC NUMBER
NUMBER OF PROTONS IN AN ATOM
ISOTOPE
ELEMENT’S ATOMS HAVE SAME NUMBER OF PROTONS BUT DIFFERENT NUMBER OF NEUTRONS
ATOM
TINY PARTICLES THAT COMPOSE ELEMENTS
MOLECULE
CHEMICAL STRUCTURE OF ATOMS HELD TOGETHER BY COVALENT BONDS
MIXTURES
SUBSTANCES CONTAINING TWO OR MORE COMPONENTS
COLLOIDS
AKA EMULSIONS
HETEROGENEOUS MIXTURES
LARGE SOLUTE PARTICLES THAT DO NOT SETTLE
SOLUTIONS
HOMOGENEOUS MIXTURES
SOLVENT
LARGEST SUBSTANCE PRESENT IN MIXTURE
DISSOLVING MEDIUM
SOLUTES
SMALLER SUBSTANCE PRESENT IN MIXTURE
SUSPENSIONS
HETEROGENEOUS MIXTURES
LARGE SOLUTES THAT SETTLE
COMPOUND
TWO IDENTICAL MOLECULES
IONS
ATOMS THAT EITHER GAIN OR LOSE ELECTRONS
IONIC BOND
BOND DUE TO TRANSFER OF ELECTRONS
CATIONS
POSITIVE IONS
ANIONS
NEGATIVE IONS
COVALENT BOND
BOND DUE TO SHARING OF ELECTRONS