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the things we need to memorize and shi
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H
Hydrogen
Li
Lithium
Na
Sodium
K
potassium, an alkali metal, is essential for biological functions and is used in fertilizers.
Be
Beryllium
Mg
Magnesium
Ca
calcium
Sr
Strontium
Ba
Barium
Sc
Scandium
Ti
titanium
V
vanadium
Cr
Chromium
Mn
Manganese
Fe
Iron
Co
Cobalt
Ni
Nickel
Cu
Copper
Zn
Zinc
B
Boron
Al
Aluminum
Ga
Gallium
C
Carbon
Si
Silicon
Ge
Germanium
Sn
Tin
Pb
Lead
N
Nitrogen
P
Phosphorus
As
Arsenic
O
Oxygen
S
Sulfur
Se
Selenium
F
Flourine
Cl
Chlorine
Br
Bromine
I
Iodine
He
Helium
Ne
Neon
Ar
Argon
Kr
Krypton
Xe
Xenon
Rn
Radon