What is the Periodic Table? Why is Periodic Table Made?
The periodic table is an arrangement of all the elements known to man in accordance with their increasing atomic number and recurring chemical properties. They are assorted in a tabular arrangement wherein a row is a period and a column is a group. Elements are arranged from left to right and top to bottom in the order of their increasing atomic numbers. Thus,
Elements in the same group will have the same valence electron configuration and hence, similar chemical properties.
Whereas, elements in the same period will have an increasing order of valence electrons. Therefore, as the energy level of the atom increases, the number of energy sub-levels per energy level increases.
The first 94 elements of the periodic table are naturally occurring, while the rest from 95 to 118 have only been synthesized in laboratories or nuclear reactors. The modern periodic table, the one we use now, is a new and improved version of certain models put forth by scientists in the 19th and 20th century. Dimitri Mendeleev put forward his periodic table based on the findings of some scientists before him like John Newlands and Antoine-Laurent de Lavoisier. However, Mendeleev is given sole credit for his development of the periodic table.
Why was Mendeleev Periodic Table widely accepted?
Dimitri Mendeleev, widely referred as the father of the periodic table put forth the first iteration of the periodic table similar to the one we use now. Mendeleev’s periodic law is different from the modern periodic law in one main aspect.
Mendeleev modeled his periodic table on the basis of increasing atomic mass, whereas, the modern periodic law is based on the increasing order of atomic numbers.
Even though Mendeleev’s periodic table was based on atomic weight, he was able to predict the discovery and properties of certain elements. During his time only around half of the elements known to us now were known, and most of the information known about the elements were inaccurate. Mendeleev’s Periodic Table was published in the German Journal of chemistry in 1869.
List of Periodic Table Elements
All 118 elements of the Modern Periodic Tabe is listed below.
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-Aluminum
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-Cesium
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-Ensteinium
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
Recommended Videos
Periodic Table – Introduction
The Modern Periodic Table
How to Memorize the Periodic Table?
Periodic Classification of Elements
Frequently Asked Questions - FAQs
Q1
How many elements are there in periodic table?
118 Elements are present in the Periodic Table. As per the periodic law, the properties of Elements are periodic functions of their atomic numbers.Q2
Who created the periodic table and why?
The structure for the contemporary periodic table was developed in 1869 by Russian chemist Dmitri Mendeleev, who left spaces for elements that had not yet been discovered.Q3
What is a group in a periodic table?
A group is a column of elements in the periodic table of the chemical elements. The elements in a group have similar physical or chemical characteristics of the outermost electron shells of their atoms.Q4
What are the first 20 elements of periodic table in order?
H – Hydrogen
He – Helium
Li – Lithium
Be – Beryllium
B – Boron
C – Carbon
N – Nitrogen
O – Oxygen
F – Fluorine
Ne – Neon
Na – Sodium
Mg – Magnesium
Al – Aluminium
Si – Silicon
P – Phosphorus
S – Sulphur
Cl – Chlorine
Ar – Argon
K – Potassium
Ca – Calcium
Q5
What is modern periodic table explain?
The modern or long form of the periodic table is based on the modern periodic law. The table is the arrangement of elements in increasing order of their atomic numbers. The modern periodic table is the present form of the periodic table. And it consists of 18 vertical columns and 7 horizontal rows.Q6
Who found the first element of Periodic table?
In 1669, phosphorus was the first element to be chemically discovered by Hennig Brandt .Q7
What are the 4 trends of the periodic table?
There are four main periodic trends, electronegativity, atomic size, ionization energy, and electron affinity.Q8
How was the atomic number discovered?
Henry Moseley made the discovery of the atomic number in 1913 while analysing X-ray spectra. He discovered that when we increase the atomic number by one, certain lines in the x-ray spectra of atoms move by the same amount each time.Q9
How many metals and non-metals are there in 118 elements?
There are 118 different elements in the current periodic table. There are 18 non-metals. There are 7 metalloids and 93 different types of metal.Q10
What are the 4 blocks on the periodic table?
The valence electron orbitals of the elements in the periodic table are used to group them into blocks. The four blocks are s-block, p-block, d-block, and f-block.
Important Topics in Periodic Table
Elements of the Periodic Table
Periodicity in Properties of Elements
History of the Periodic Table
Mendeleev's Periodic Table
Table of 118 Elements
Electronic Configuration of Elements
Periodic Trends in Ionization Enthalphy
Trends in Electron Gain Enthalpy
Newlands Octaves & Dobereiner Triads
Significance of Periodic Properties Of Elements
Periodic Table Questions
Memorize the Periodic Table
Important Chemistry Topics
Aufbau Principle
Electron Configuration
Isomerism
Planck's Quantum Theory
Valence Bond Theory
Reactivity Series
Named Reactions
Dipole Moment
Thermal Conductivity
Mole Concept
Tyndall Effect
Balancing Chemical Equations
Electromeric Effect
Electrochemical Cell
Boyle's Law
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