Discovering Design with Chemistry Ch 3
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29 Terms
Radioactive decay
The spontaneous breakdown of an atom's nucleus, which often changes the element to which the atom belongs
Physical constant
A quantity in nature that never changes
Ground state
The lowest energy state of a particle
Spectroscopy
Identifying chemicals by studying the light they emit or absorb
frequency
f=c/λ c =3.00 X 10⁸ m/sec(no need to memorize c)
Energy in light
E = h.f (h is Planck’s constant, h= 6.63×10⁻³⁴ J.sec) no need to memorize h
nanometer
1 nm =10^-9 m
H
Hydrogen
He
Helium
Li
Lithium
Be
Beryllium
B
Boron
C
Carbon
N and O
Nitrogen and Oxygen
F
Fluorine
Ne
Neon
Na
Sodium
Mg
Magnesium
Al
Aluminum
Si
Silicon
P and S
Phosphorus and Sulfur
Cl
Chlorine
Ar
Argon
K
Potassium
Ca
Calcium
Sc
Scandium
Wavelength of light
Color
Amplitude of light
Brightness
Frequency of light
Energy (remember: longer wavelength, lower frequency)