Periodic

Table

of

Elements

 

 

 

 

 

 

 
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
H                                 He
Li Be                     B C N O F Ne
Na Mg                     Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg TI Pb Bi Po At Rn
Fr Ra Ac* Rf Db Sg Bh Hs Mt Uun Uuu Uub   Uua   Uuh   Uuo
                                   
Lanthanides *Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Actinides *Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

Key:

Black Letters: Solid,  Blue Letters: Liquid, Red Letters: Gas

* The bottom two separate rows fit in where the green stars are.

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Elements in the Periodic are placed in groups/families because they have their own unique characteristics according to the number of electrons in their valence shell. There are eighteen groups/families.
Three such families are the Alkali Metals, Halogens and Nobel Gases. Alkali families have one extra electron and want to lose it. Halogens need one electron in their valence shell to become stable so they want one. Alkali and Halogens react violently when combined.  Nobel Gases have complete valence shells and require no electrons and they do not react, making them Inert.
Periods are rows that show an increase in the atomic number (Protons) which in turn also shows an increase in electrons.
The Periodic Table of Elements is also arranged into elements that are classified as Metals, Metalloids and Non Metals. Elements that are shaded aqua are non metals.
 Metalloids have characteristics of both metals and non metals. Elements shaded in green show the metalloids on the Periodic Table of Elements.
Elements shaded in red are the Metals.
The Periodic Table of Elements is arranged by Atomic Numbers, Similar Valences and Properties.