Atomic Structure
Periodic Table
Physical and Chemical changes and properties and Density
Elements, Compounds and Mixtures
Balancing Chemical Equations
100
How many protons and electrons are in oxygen?
Eight
100
Mg; Mn
Magnesium; Manganese
100
State of Matter
Physical change
100
Mixture (of elements)
100
Correct this problem if unbalanced
Unbalanced
2H2O = 2H2+O2
200
What charge does a nucleus have?
Positive
200
H
NM or M
NM
200
Color, smell, pH, magnetism
Physical properties
200
What type of mixture compound or element?
Heterogenous mixture
200
C3H8 + 502 ---> ?
3CO2 + 4H20.
300
Where can you find electrons?
Electron cloud
300
Metals, metalloids, nonmetals
Right, Left, Middle?
Left, Middle, Right
300
Ability to rust, ability to react
Chemical properties
300
What type of mixture, compound, or element?
Heterogeneous mixture
300
Balanced or unbalanced?
Na+Cl2 --->
Balanced
2Na+Cl2
400
Green:
Red:
Yellow:
Green: Neutron
Red: Proton
Yellow: Electron
400
S, Si
Sulfur, Silicon
400
Smoke OR Fire
Chemical Change
400
What type of element, compound, or mixture?
Water (H2O)
400
What is on the left of the --->?
Products!!
LOOK!!
Reactants
How about the right?
500
M=mass N=neutrons
P= protons E=electrons
(M=) 259 - (N=) 127 = (P/E) ???
(P/E) = 132
500
# of periods, # of families
7, 18
500
I heart density
Mass/Volume = Density
500
Elements and compounds are:
pure substances
500
