The name of each element (in brown) is accompanied by its chemical symbol (in red),
as well as its atomic number Z and its most common (or most stable) mass number A .
Z = atomic number = number of protons in the nucleus = number of electrons orbiting the nucleus;
A = mass number = number of protons and neutrons in the most common (or most stable) nucleus.
Group I a | Group II a | G r o u p I I I b | Group IV b | Group V b | Group VI b | Group VII b | G r o u p V I I I | Group I b | Group II b | Group III a | Group IV a | Group V a | Group VI a | Group VII a | Group 0 | |||
H Z=1, A=1 | --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> | He Z=2, A=4 | ||||||||||||||||
Li Z=3, A=6 | Be Z=4, A=10 | --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> | B Z=5, A=11 | C Z=6, A=12 | N Z=7, A=14 | O Z=8, A=16 | F Z=9, A=19 | Ne Z=10, A=20 | ||||||||||
Na Z=11, A=23 | Mg Z=12, A=24 | --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> --> | Al Z=13, A=27 | Si Z=14, A=28 | P Z=15, A=31 | S Z=16, A=32 | Cl Z=17, A=35.5 | Ar Z=18, A=40 | ||||||||||
K Z=19, A=39 | Ca Z=20, A=40 | Sc Z=21, A=45 | Ti Z=22, A=48 | Va Z=23, A=51 | Cr Z=24, A=52 | Mn Z=25, A=55 | Fe Z=26, A=56 | Co Z=27, A=59 | Ni Z=28, A=59 | Cu Z=29, A=63.5 | Zn Z=30, A=65 | Ga Z=31, A=70 | Ge Z=32, A=73 | As Z=33, A=75 | Se Z=34, A=79 | Br Z=35, A=80 | Kr Z=36, A=84 | |
Rb Z=37, A=85.5 | Sr Z=38, A=88 | Y Z=39, A=89 | Zr Z=40, A=91 | Nb Z=41, A=93 | Mo Z=42, A=96 | Tc Z=43, A=97 | Ru Z=44, A=101 | Rh Z=45, A=103 | Pd Z=46, A=106 | Ag Z=47, A=108 | Cd Z=48, A=112 | In Z=49, A=115 | Sn Z=50, A=119 | Sb Z=51, A=122 | Te Z=52, A=128 | I Z=53, A=127 | Xe Z=54, A=131 | |
Cs Z=55, A=133 | Ba Z=56, A=137 | La Z=57, A=139 | Series Z=57-71 | Hf Z=72, A=178.5 | Ta Z=73, A=181 | W Z=74, A=184 | Re Z=75, A=186 | Os Z=76, A=190 | Ir Z=77, A=192 | Pt Z=78, A=195 | Au Z=79, A=197 | Hg Z=80, A=201 | Tl Z=81, A=204 | Pb Z=82, A=207 | Bi Z=83, A=209 | Po Z=84, A=209 | At Z=85, A=210 | Rn Z=86, A=222 |
Fr Z=87, A=223 | Ra Z=88, A=226 | Ac Z=89, A=227 | Series Z=89-103 | Rf Z=104, A=261 | Db Z=105, A=262 | Sg Z=106, A=263 | Bh Z=107, A=262 | Hs Z=108, A=265 | Mt Z=109, A=266 | Ds Z=110 | Rg Z=111 | Cn Z=112 | Nh Z=113 | Fl Z=114 | Mc Z=115 | Lv Z=116 | Ts Z=117 | Og Z=118 |
Group I a | Group II a | G r o u p I I I b | Group IV b | Group V b | Group VI b | Group VII b | G r o u p V I I I | Group I b | Group II b | Group III a | Group IV a | Group V a | Group VI a | Group VII a | Group 0 |
The Lanthanide Series (Rare Earth Elements) | |||||||||||||||
La Z=57, A=139 | Ce Z=58, A=140 | Pr Z=59, A=141 | Nd Z=60, A=144 | Pm Z=61, A=145 | Sm Z=62, A=150 | Eu Z=63, A=152 | Gd Z=64, A=157 | Tb Z=65, A=159 | Dy Z=66, A=162.5 | Ho Z=67, A=165 | Er Z=68, A=167 | Tm Z=69, A=169 | Yb Z=70, A=173 | Lu Z=71, A=175 | Periodic Table |
The Actinide Series (Radioactive Rare Earth Elements) | |||||||||||||||
Ac Z=89, A=227 | Th Z=90, A=232 | Pa Z=91, A=231 | U Z=92, A=238 | Np Z=93, A=237 | Pu Z=94, A=244 | Am Z=95, A=243 | Cm Z=96, A=247 | Bk Z=97, A=247 | Cf Z=98, A=251 | Es Z=99, A=254 | Fm Z=100, A=257 | Md Z=101, A=256 | No Z=102, A=254 | Lr Z=103, A=256 | Periodic Table |
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