Table 1.1
Lead
(82)
Pb
Cobalt
(27)
Co
As
(33)
Arsenic
F
(9)
Flourine
Br
(35)
Bromine
Mercury
(80)
Hg
Beryllium
(4)
Be
H
(1)
Hydrogen
Nickel
(28)
Ni
Sodium
(11)
Na
I
(53)
Iodine
(also a diatomic molecule and halogen)
Manganese
(25)
Mn
Ga
(31)
Gallium
Ge
(32)
Germanium
Neon
(10)
Ne
Sn
(50)
Tin
Nitrogen
(7)
Nitrogen
Boron
(5)
B
Cl
(17)
Chlorine
C
(6)
Carbon
Scandium
(21)
Sc
Silicon
(14)
Si
Ar
(18)
Argon
Potassium
(19)
K
Aluminum
(13)
Al
Chromium
(24)
Cr
Sulfur
(16)
S
Ti
(22)
Titanium
Zinc
(30)
Zn
Iron
(26)
Fe
Copper
(29)
Cu
V
(23)
Vanadium
Selenium
(34)
Se
Lithium
(3)
Li
He
(2)
Helium
Ca
(20)
Calcium
P
(15)
Phosphorus
Krypton
(36)
Kr
Oxygen
(8)
O
Mg
(12)
Magnesium