Monday, November 14, 2011

Conductivity Lab

The idea of the lab was to see if different types of substances were able to conduct energy. We mixed 10 different chemicals with water and went to examine the conductivity. With a conductivity tester we put the two solid metals sticking out into the liquid and the meter showed the level of conductivity it had. Here is a graph showing our results:


Tuesday, November 1, 2011

Scavenger hunt


Boiling
point
Melting
point
Density
Atomic radius
Electronegatvity
# of Isotopes
Element that is highest
ReCIrCsF
Element that is lowest
HeHe HHeFr
Highest of Alkali metals
LiLiCsCsLi
Lowest of Alkali metals
CsFrLiLiFr
Highest of Alkali Earth Metals
BeBeRaBa
Be
Lowest of Alkali Earth Metals
MgMgCaBeRa
Highest of Transition metals
ReWIrYAu
Lowest of Transition metals
HgHgScZnHf
Highest of Noble Gases
RnRnRnRnKr
Lowest of Noble Gases
HHeHeHeXe
Highest of Halogens
AtAtIAtF
Lowest of Halogens
FFAtFAt
Highest of the Oxygen Group
PoTePoPoO
Lowest of the Oxygen group
OOOOPo
Highest of the Carbon Group
CCPbPbC
Lowest of the Carbon group
PbSnCCSi
Highest of the Boron group
BBTiTi  and InB
Lowest of the Boron group
TiGaBBAl




Name       
Discoverer(s)
Use
Atomic number
Most stable isotope #
Na
SodiumHumphry Davy 11
Al
Aluminum 13
Ra
RadiumMarie Sklodowska-Curie 88
O
OxygenCarl Wilheml Scheele
and
Joseph Priestley
8
Ti
TitaniumWilliam Gregor
named by Martin Heinrich
22
Po
PoloniumMarie Sklodowska-Curie  and Pierre Curie 84
K
Potassium 19
Pb
Lead Building construction, lead-acid batteries, bullets and shots, weights, as part of solders, pewters. fusible alloys and as a radiation shield82