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Chem Exam 1
Term | Definition |
---|---|
Ar | Argon |
K | Potassium |
Ca | Calcium |
V | Vanadium |
Cr | Chromium |
Zn | Zinc |
Atom | building blocks of matter |
heterogeneous | unevenly mixed |
H | Hydrogen |
He | Helium |
Li | Lithium |
Be | Beryllium |
B | Boron |
C | Carbon |
N | Nitrogen |
O | Oxygen |
F | Flourine |
Ne | Neon |
Na | Sodium |
Mg | Magnesium |
Al | Aluminium |
Si | Silicon |
P | Phosphorus |
S | Sulfur |
Sc | Scandium |
Ti | Titanium |
Mn | Manganese |
Fe | Iron |
Co | Cobalt |
Ni | Nickel |
Ga | Gallium |
Ge | Germanium |
As | Arsenic |
Se | Selenium |
Br | Bromine |
Kr | Krypton |
Ag | Silver |
I | Iodine |
Xe | Xenon |
Au | Gold |
Hg | Mercury |
Pb | Lead |
Rn | Radon |
Pure Substance | Anything made of 1 type of element or compound |
Element | made of 1 type of atom |
Compound | more than 1 type of element bonded the same way every time |
homogeneous | evenly mixed |
Deposition | gas to solid |
sublmination | solid to gas |
hypothesis | educated guess |
prediction | a statement of what will happen next in a sequence of events |
theory | explains why the world works |
law | doesn't explain why the world works |
precision | how close the repeated measurements are to one another |
accuracy | how close a measurement is to the true value |
eq for density | d=m/v |
cubic centimeter | millimeter |
Alkali Metals | 1A |
Halogens | 7A |
Alkaline Earth Metals | 2A |
Noble Gases | 8A |
Electrons | Orbitals |
Anion | negative ion |
Cation | positive ion |
charge | p - e |