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Last updated 4:20 PM on 8/8/24
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43 Terms
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Hydrogen
H
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Helium
He
3
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Lithium
Li
4
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Beryllium
Be
5
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Boron
B
6
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Carbon
C
7
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Nitrogen
N
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Oxygen
O
9
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Fluorine
F
10
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Neon
Ne
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Sodium
Na
12
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Magnesium
Mg
13
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Aluminum
Al
14
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Silicon
Si
15
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Phosphorus
P
16
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Sulfur
S
17
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Chlorine
Cl
18
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Argon
Ar
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Potassium
K
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Calcium
Ca
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Iron
Fe
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Cobalt
Co
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Nickel
Ni
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Copper
Cu
25
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Zinc
Zn
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Bromine
Br
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Silver
Ag
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Tin
Sn
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Iodine
I
30
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Barium
Ba
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Platinum
Pt
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Gold
Au
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Mercury
Hg
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Lead
Pb
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Atomic number is on the
periodic table
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Isotope
Same atoms with different masses
37
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Mass can be determined by
Adding protons + neutrons
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Rings represent
electron shells
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Outermost rings electrons are
Valence electrons
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Valence electrons purpose
show and elements chemical property
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Name of element
= number of protons
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Charge formula
protons - electrons
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Proton number always =
electron number