Thursday, October 6, 2022

A Detailed Understanding Of Atomic Number and The Atomic Numbers of All The 118 Elements

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Sameer Mujawar
Sameer Mujawar
He is a Digital Marketing Enthusiastic. He is good at search engine optimization and Facebook ads. He loves doing meditation. He is a street food lover. He loves to taste different types of delicious foods. He is a gym lover and he loves to spend time to train body and mind.

Science can often feel like an overwhelming subject for many; however, it is a necessity in your everyday life. The aim of science is simple — to find out all about the order in the universe and organise and define that information based on that order. 

With the discovery of elements, the next step was taken to understand whether the data of each element was different or not. Mendeleev was among the first who started organising this data or the elements based on their atomic weights. 

Once a detailed study was done, scientists slowly rearranged and organised the elements depending on the proton numbers in the nucleus. It is, in simple words, called the atomic number, and here, detailed information would be provided on all the 118 elements and their atomic numbers


What Are Elements? 

At first, the chemical behaviour intrigued scientists into classifying matter into different elements. What is chemical behaviour? The ability of an atom to combine with another atom. What does chemical behaviour depend on? 

The type and number of chemical bonds that one atom can create with another define chemical behaviour. 

Can two atoms show the same kind of chemical behaviour? If two different atoms have the same kind of bond, then their chemical behaviour can be similar. 


Atomic Number- How Is It Defined? 

Defining atomic numbers should be done when students are at their chemistry foundation level. The atomic number of any element is the number of protons present within the nucleus of each atom of that particular element. 

Therefore, each element can be differentiated from other elements depending on their total number of protons, defining their chemical behaviour. 


The periodic table gives you detailed data of all the elements, arranged in their atomic numbers in increasing order. The atomic number is positioned above the element symbol. You would see that Hydrogen on its upper left has the number 1, which is the atomic number. It is known that atoms are neutral; therefore, it is easy to figure out that the number of protons would equalCaesium the number of electrons. 

What Should You Know About THe History Of Atomic Numbers? 

Leucippus and Demokritos were the first ones who thought that the earth and the universe might be made of small particles, which they termed atoms. However, Aristotle was not of the same view. 

Later, atoms are considered the central or the structural blocks of everything, and except for common hydrogen forms, each comes with electrons, protons, and neutrons. 

Isotopes are defined as atoms that come with the same atomic number but have different neutron numbers. When it comes to the isotopic mass of any isotopic mixture within a defined environment, it determines the atomic weight of that element. 


Orbital Energy Levels


Electrons are located at a particular energy level; these energy level sections are called orbitals. The first orbital can consist of a maximum of two electrons. An easy way to understand how electrons are distributed is through diagrams. 

The atomic number of any element would tell you the number of protons that are present. An example would be the atomic number of carbon is 6; therefore, the distribution would be 2,4. If an atom comes with an atomic number of 13, the distribution would be 2,8,2. 


All The Elements And Their Atomic Numbers 

Let us find out What are the 118 elements of the periodic table.

Element Symbol Atomic Number
Hydrogen H 1
Helium He 2
Lithium Li 3
Beryllium Be 4
Boron B 5
Carbon C 6
Nitrogen N 7
Oxygen O 8
Fluorine F 9
Neon Ne 10
Sodium Na 11
Magnesium Mg 12
Aluminium Al 13
Silicon Si 14
Phosphorous P 15
Sulfur S 16
Chlorine Cl 17
Argon Ar 18
Potassium K 19
Calcium Ca 20
Scandium Sc 21
Titanium Ti 22
Vanadium V 23
Chromium Cr 24
Manganese Mn 25
Iron Fe 26
Cobalt Co 27
Nickel Ni 28
Copper Cu 29
Zinc Zn 30
Gallium Ga 31
Germanium Ge 32
Arsenic As 33
Selenium Se 34
Bromine Br 35
Krypton Kr 36
Rubidium Rb 37
Strontium Sr 38
Yttrium Y 39
Zirconium Zr 40
Niobium Nb 41
Molybdenum Mo 42
Technetium Tc 43
Ruthenium Ru 44
Rhodium Rh 45
Palladium Pd 46
Silver Ag 47
Cadmium Cd 48
Indium In 49
Tin Sn 50
Antimony Sb 51
Tellurium Te 52
Iodine I 53
Xenon Xe 54
Cesium Cs 55
Barium Ba 56
Lanthanum La 57
Cerium Ce 58
Praseodymium Pr 59
Neodymium Nd 60
Promethium Pm 61
Samarium Sm 62
Europium Eu 63
Gadolinium Gd 64
Terbium Tb 65
Dysprosium Dy 66
Holmium Ho 67
Erbium Er 68
Thulium Tm 69
Ytterbium Yb 70
Lutetium Lu 71
Hafnium Hf 72
Tantalum Ta 73
Tungsten W 74
Rhenium Re 75
Osmium Os 76
Iridium Ir 77
Platinum Pt 78
Gold Au 79
Mercury Hg 80
Thallium Tl 81
Lead Pb 82
Bismuth Bi 83
Polonium Po 84
Astatine At 85
Radon Rn 86
Francium Fr 87
Radium Ra 88
Actinium Ac 89
Thorium Th 90
Protactinium Pa 91
Uranium U 92
Neptunium Np 93
Plutonium Pu 94
Americium Am 95
Curium Cm 96
Berkelium Bk 97
Californium Cf 98
Einsteinium Es 99
Fermium Fm 100
Mendelevium Md 101
Nobelium No 102
Lawrencium Lr 103
Rutherfordium Rf 104
Dubnium Db 105
Seaborgium Sg 106
Bohrium Bh 107
Hassium Hs 108
Meitnerium Mt 109
Darmstadtium Ds 110
Roentgenium Rg 111
Copernicium Cn 112
Nihonium Nh 113
Flerovium Fl 114
Moscovium Mc 115
Livermorium Lv 116
Tennessine Ts 117
Oganesson Og 118

Atomic Weight- What Does It Mean? 


Like protons are present in an atom, the atom’s nucleus also contains neutrons, which help keep the nucleus intact. Without any electrical charge, neutrons are slightly bigger than protons, and as they can break down, it is often considered a blend of proton and an electron. 

As neutrons are heavier than protons, they could add weight to the atom as a whole. The atom’s weight is called the atomic weight, which equals the number of neutrons and protons. The stability and radioactivity of the atom depend highly on the neutron. 


Therefore, these are some of the basics of atomic numbers. All the 118 elements and their atomic numbers have been given to understand what they are and their importance. 


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