The basic theme of organisation of elements in the periodic table is to classify the elements in periods and groups according to their properties. This arrangement makes the study of elements and their compounds simple and systematic. In the periodic table, elements with similar properties are placed in the same group.
List-I Tetrahedral Complex | List-II Electronic configuration |
---|---|
(A) TiCl4 | (I) e2, t20 |
(B) [FeO4]2- | (II) e4, t23 |
(C) [FeCl4]- | (III) e0, t22 |
(D) [CoCl4]2- | (IV) e2, t23 |
Modern Periodic Table is the tabular arrangement of the elements in increasing order of their atomic numbers. It is commonly referred to as the Long Form of the Periodic Table and is based on the modern periodic law and is the tabular arrangement of elements in increasing order of their atomic numbers (Z).
*Numbering system adopted by the International Union of Pure and Applied Chemistry (IUPAC).
The periodic table of elements is as follows:
Atomic number (Z) | Symbol | Name |
1 | H | Hydrogen |
2 | He | Helium |
3 | Li | Lithium |
4 | Be | Beryllium |
5 | B | Boron |
6 | C | Carbon |
7 | N | Nitrogen |
8 | O | Oxygen |
9 | F | Fluorine |
10 | Ne | Neon |
11 | Na | Sodium |
12 | Mg | Magnesium |
13 | Al | Aluminium |
14 | Si | Silicon |
15 | P | Phosphorus |
16 | S | Sulfur |
17 | Cl | Chlorine |
18 | Ar | Argon |
19 | K | Potassium |
20 | Ca | Calcium |
21 | Sc | Scandium |
22 | Ti | Titanium |
23 | V | Vanadium |
24 | Cr | Chromium |
25 | Mn | Manganese |
26 | Fe | Iron |
27 | Co | Cobalt |
28 | Ni | Nickel |
29 | Cu | Copper |
30 | Zn | Zinc |
31 | Ga | Gallium |
32 | Ge | Germanium |
33 | As | Arsenic |
34 | Se | Selenium |
35 | Br | Bromine |
36 | Kr | Krypton |
37 | Rb | Rubidium |
38 | Sr | Strontium |
39 | Y | Yttrium |
40 | Zr | Zirconium |
41 | Nb | Niobium |
42 | Mo | Molybdenum |
43 | Tc | Technetium |
44 | Ru | Ruthenium |
45 | Rh | Rhodium |
46 | Pd | Palladium |
47 | Ag | Silver |
48 | Cd | Cadmium |
49 | In | Indium |
50 | Sn | Tin |
51 | Sb | Antimony |
52 | Te | Tellurium |
53 | I | Iodine |
54 | Xe | Xenon |
55 | Cs | Caesium |
56 | Ba | Barium |
57 | La | Lanthanum |
58 | Ce | Cerium |
59 | Pr | Praseodymium |
60 | Nd | Neodymium |
61 | Pm | Promethium |
62 | Sm | Samarium |
63 | Eu | Europium |
64 | Gd | Gadolinium |
65 | Tb | Terbium |
66 | Dy | Dysprosium |
67 | Ho | Holmium |
68 | Er | Erbium |
69 | Tm | Thulium |
70 | Yb | Ytterbium |
71 | Lu | Lutetium |
72 | Hf | Hafnium |
73 | Ta | Tantalum |
74 | W | Tungsten |
75 | Re | Rhenium |
76 | Os | Osmium |
77 | Ir | Iridium |
78 | Pt | Platinum |
79 | Au | Gold |
80 | Hg | Mercury |
81 | Tl | Thallium |
82 | Pb | Lead |
83 | Bi | Bismuth |
84 | Po | Polonium |
85 | At | Astatine |
86 | Rn | Radon |
87 | Fr | Francium |
88 | Ra | Radium |
89 | Ac | Actinium |
90 | Th | Thorium |
91 | Pa | Protactinium |
92 | U | Uranium |
93 | Np | Neptunium |
94 | Pu | Plutonium |
95 | Am | Americium |
96 | Cm | Curium |
97 | Bk | Berkelium |
98 | Cf | Californium |
99 | Es | Einsteinium |
100 | Fm | Fermium |
101 | Md | Mendelevium |
102 | No | Nobelium |
103 | Lr | Lawrencium |
104 | Rf | Rutherfordium |
105 | Db | Dubnium |
106 | Sg | Seaborgium |
107 | Bh | Bohrium |
108 | Hs | Hassium |
109 | Mt | Meitnerium |
110 | Ds | Darmstadtium |
111 | Rg | Roentgenium |
112 | Cn | Copernicium |
113 | Nh | Nihonium |
114 | Fl | Flerovium |
115 | Mc | Moscovium |
116 | Lv | Livermorium |
117 | Ts | Tennessine |
118 | Og | Oganesson |
Read More: Periodic Classification of Elements