Modern Periodic Table PDF | 118 Elements List PDF

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118 Elements List And Their Symbols And Atomic Numbers PDF Free Download

The modern periodic table, today, consists of 118 elements in total. Since the names of the elements can be long and complex to use, these are denoted using a symbol. Each element has a unique symbol. 

What is Meant by a Symbol?

A symbol is a notation that generally comprises one or two letters that are used to represent a chemical element. There are also symbols having 3 letters. These are newly synthesized elements and they are temporarily named like that.

There are certain rules associated with writing a symbol. The first letter of a symbol is always capitalized while the second (or third) letter is always written in lowercase. E.g.- Ca for Calcium, He for Helium, etc. If the symbol for an element consists of only one letter, it is always written in uppercase. 

E.g.- N for Nitrogen, O for oxygen etc.

Symbols are most commonly used to represent elements in a periodic table. Chemical formulas and equations are also represented using those symbols.

Without the symbols, it would have been a herculean task to represent all these 118 elements and the umpteen numbers of compounds they form. The following table gives the list of 118 elements along with their symbols and atomic number.

118 Element and their Symbols and Atomic Number (Table)

Atomic NumberElementSymbol
1HydrogenH
2HeliumHe
3LithiumLi
4BerylliumBe
5BoronB
6CarbonC
7NitrogenN
8OxygenO
9FluorineF
10NeonNe
11SodiumNa
12MagnesiumMg
13AluminumAl
14SiliconSi
15PhosphorousP
16SulfurS
17ChlorineCl
18ArgonAr
19PotassiumK
20CalciumCa
21ScandiumSc
22TitaniumTi
23VanadiumV
24ChromiumCr
25ManganeseMn
26IronFe
27CobaltCo
28NickelNi
29CopperCu
30ZincZn
31GalliumGa
32GermaniumGe
33ArsenicAs
34SeleniumSe
35BromineBr
36KryptonKr
37RubidiumRb
38StrontiumSr
39YttriumY
40ZirconiumZr
41NiobiumNb
42MolybdenumMo
43TechnetiumTc
44RutheniumRu
45RhodiumRh
46PalladiumPd
47SilverAg
48CadmiumCd
49IndiumIn
50TinSn
51AntimonySb
52TelluriumTe
53IodineI
54XenonXe
55CesiumCs
56BariumBa
57LanthanumLa
58CeriumCe
59PraseodymiumPr
60NeodymiumNd
61PromethiumPm
62SamariumSm
63EuropiumEu
64GadoliniumGd
65TerbiumTb
66DysprosiumDy
67HolmiumHo
68ErbiumEr
69ThuliumTm
70YtterbiumYb
71LutetiumLu
72HafniumHf
73TantalumTa
74TungstenW
75RheniumRe
76OsmiumOs
77IridiumIr
78PlatinumPt
79GoldAu
80MercuryHg
81ThalliumTl
82LeadPb
83BismuthBi
84PoloniumPo
85AstatineAt
86RadonRn
87FranciumFr
88RadiumRa
89ActiniumAc
90ThoriumTh
91ProtactiniumPa
92UraniumU
93NeptuniumNp
94PlutoniumPu
95AmericiumAm
96CuriumCm
97BerkeliumBk
98CaliforniumCf
99EinsteiniumEs
100FermiumFm
101MendeleviumMd
102NobeliumNo
103LawrenciumLr
104RutherfordiumRf
105DubniumDb
106SeaborgiumSg
107BohriumBh
108HassiumHs
109MeitneriumMt
110DarmstadtiumDs
111RoentgeniumRg
112CoperniciumCn
113NihoniumNh
114FleroviumFl
115MoscoviumMc
116LivermoriumLv
117TennessineTs
118OganessonOg

We now know all the 118 elements and their symbols. One may ask, ‘How is the symbol of an element derived?’

We can see in the table above that most of the symbols are derived from the elements’ names, by taking the first or first two letters from the English name of the element. But we can also see that many of the symbols do not follow this pattern.

This is because the symbols of a few elements are derived from their Latin or Greek names. For example, the Latin name for gold is aurum.

Hence, it is denoted by Au. Sometimes, the elements are also named after the scientists or the geographical location where they were discovered. The elements which are new are temporarily named according to their atomic numbers.

Valency of an Element

In order to achieve the most stable configuration i.e. of a noble gas, the atom of an element tries to gain or lose electrons.

This ability of an atom to gain or lose electrons to achieve a stable configuration or inert gas configuration is called the Valency of an element.

The number of electrons in the outermost shell is called valence electrons and the outermost shell is called the valence shell.

The valency of an element is determined by the number of electrons in the valence shell. It is important to know the atomic number and electronic configuration of an element to find its valency.

Atomic Number

The concept of atomic number and valency can only be understood if you know what exactly are elements made up of. An element is made up of a single type of atom. An atom is the smallest indivisible unit of matter. It consists of electrons, protons, and neutrons.

The center of the atom also called the nucleus which is positively charged and consists of protons and neutrons. Protons are positively charged. Neutrons are neutral and it doesn’t have any charge on them. The nucleus is surrounded by negatively charged electrons. 

The sum of protons and neutrons gives the atomic mass of an element. The atomic number is the total number of protons present in the nucleus of an atom. It is denoted by the letter Z.

The chemical properties of an element are determined by the number of protons in the nucleus. This is why the knowledge of atomic numbers is important in understanding the chemistry of elements.

AuthorACS
Language English
No. of Pages1
PDF Size0.5 MB
CategoryEducation

Other periodic tables given below are useful for class 8, class 9, class 10, class 11, class 12th students.

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Modern Periodic Table, 118 Elements List PDF Free Download

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