Basic Chemistry
I. Elements and Atoms
A.
Element-a substance that cannot be ______________________
__________________________________________________
B.
Over 112 ___________________________________________
C.
Trace elements essential for life are ______________________
D.
Atom-the smallest particle of an _________________________
__________________________________________________
II. Elements in the Human Body
96 % of the mass in a human body is:
A.
B.
C.
D.
III. Structure of an Atom
A.
Nucleus____________________________________________
__________________________________________________
B.
Electron Cloud ______________________________________
__________________________________________________
C.
Energy Levels-
A. 1st-
B. 2nd
C. 3rd-
IV. Compounds and
Bonding
A.
Compound- A substance that is _________________________
_________________________________________________
B.
Covalent bonds-Atoms that share _______________________
C.
Molecules-Are held together by ________________________
D.
Ionic bonds-Atoms that give up ________________________
_________________________________________________
V. pH scale
A.
Based on powers of __________
B.
Acids are below pH of ________
1.
Contain more __________________
C.
Bases are above pH of ________
1. Contain more __________________
D.
Mixture ___________________________________________
__________________________________________________
E.
Solution ___________________________________________
__________________________________________________