Question

PROVIDE NAME OF ALL OF THE ELEMENTS AND THEIR ATOMIC NUMBER
(class 10) (chapter - 1)
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Answer 1

The periodic table is the tabular arrangement of all the chemical elements on the basis of their respective atomic numbers. In the periodic table, the vertical columns are called ‘groups’ and the horizontal rows are called ‘periods’. The modern periodic table is based on the modern periodic law put forward by the English physicist Henry Moseley, which states that “the properties of elements are periodic functions of their atomic numbers”. Periodic trends in the properties of the elements can be observed down the groups and across the periods of the modern periodic table.

Every chemical element has a specific atomic number, which provides insight into the number of protons present within its nucleus. All isotopes of an element fall under a single cell on the periodic table, since they all share the same atomic number.

Periodic Table of Elements

Periodic Table of Elements – Atomic Number, Atomic Mass, Groups & Symbols

Also, Check ⇒

Periodic Trends in Atomic Radii

Periodic Trends in Ionic Radii

Periodic Trends in Electronegativity

Periodic Trends in Electron Affinity

Periodic Trends in Ionization Energy

List of Chemical Elements

The table below consists of 118 elements of the periodic table, sorted by atomic number, atomic weight, symbols, density, discovered year and the group.

Atomic Number Atomic Mass Chemical Element Name Symbol Discovery (Year) Group

1 1.0079 Hydrogen H 1776 1

2 4.0026 Helium He 1895 18

3 6.941 Lithium Li 1817 1

4 9.0122 Beryllium Be 1797 2

5 10.811 Boron B 1808 13

6 12.0107 Carbon C Ancient 14

7 14.0067 Nitrogen N 1772 15

8 15.9994 Oxygen O 1774 16

9 18.9984 Fluorine F 1886 17

10 20.1797 Neon Ne 1898 18

11 22.9897 Sodium Na 1807 1

12 24.305 Magnesium Mg 1755 2

13 26.9815 Aluminum Al 1825 13

14 28.0855 Silicon Si 1824 14

15 30.9738 Phosphorus P 1669 15

16 32.065 Sulfur S Ancient 16

17 35.453 Chlorine Cl 1774 17

18 39.948 Argon Ar 1894 18

19 39.0983 Potassium K 1807 1

20 40.078 Calcium Ca 1808 2

21 44.9559 Scandium Sc 1879 3

22 47.867 Titanium Ti 1791 4

23 50.9415 Vanadium V 1830 5

24 51.9961 Chromium Cr 1797 6

25 54.938 Manganese Mn 1774 7

26 55.845 Iron Fe Ancient 8

27 58.9332 Cobalt Co 1735 9

28 58.6934 Nickel Ni 1751 10

29 63.546 Copper Cu Ancient 11

30 65.39 Zinc Zn Ancient 12

31 69.723 Gallium Ga 1875 13

32 72.64 Germanium Ge 1886 14

33 74.9216 Arsenic As Ancient 15

34 78.96 Selenium Se 1817 16

35 79.904 Bromine Br 1826 17

36 83.8 Krypton Kr 1898 18

37 85.4678 Rubidium Rb 1861 1

38 87.62 Strontium Sr 1790 2

39 88.9059 Yttrium Y 1794 3

40 91.224 Zirconium Zr 1789 4

41 92.9064 Niobium Nb 1801 5

42 95.94 Molybdenum Mo 1781 6

43 98 Technetium Tc 1937 7

44 101.07 Ruthenium Ru 1844 8

45 102.9055 Rhodium Rh 1803 9

46 106.42 Palladium Pd 1803 10

47 107.8682 Silver Ag Ancient 11

48 112.411 Cadmium Cd 1817 12

49 114.818 Indium In 1863 13

50 118.71 Tin Sn Ancient 14

51 121.76 Antimony Sb Ancient 15

52 127.6 Tellurium Te 1783 16

53 126.9045 Iodine I 1811 17

54 131.293 Xenon Xe 1898 18

55 132.9055 Cesium Cs 1860 1

56 137.327 Barium Ba 1808 2

57 138.9055 Lanthanum La 1839 3

58 140.116 Cerium Ce 1803 101

59 140.9077 Praseodymium Pr 1885 101

60 144.24 Neodymium Nd 1885 101

61 145 Promethium Pm 1945 101

62 150.36 Samarium Sm 1879 101

63 151.964 Europium Eu 1901 101

64 157.25 Gadolinium Gd 1880 101

65 158.9253 Terbium Tb 1843 101

66 162.5 Dysprosium Dy 1886 101

67 164.9303 Holmium Ho 1867 101

68 167.259 Erbium Er 1842 101

69 168.9342 Thulium Tm 1879 101

70 173.04 Ytterbium Yb 1878 101

71 174.967 Lutetium Lu 1907 101

72 178.49 Hafnium Hf 1923 4

73 180.9479 Tantalum Ta 1802 5

74 183.84 Tungsten W 1783 6

75 186.207 Rhenium Re 1925 7

76 190.23 Osmium Os 1803 8

77 196.9665 Iridium Ir Ancient 11

78 192.217 Platinum Pt 1803 9

79 195.078 Gold Au 1735 10

80 200.59 Mercury Hg Ancient 12

81 204.3833 Thallium Tl 1861 13

82 207.2 Lead Pb Ancient 14

83 208.9804 Bismuth Bi Ancient 15

84 209 Polonium Po 1898 16

85 210 Astatine At 1940 17

86 222 Radon Rn 1900 18

87 223 Francium Fr 1939 1

88 226 Radium Ra 1898 2

89 227 Actinium Ac 1899 3

90 232.0381 Thorium Th 1829 102

91 231.0359 Protactinium Pa 1913 102

92 238.0289 Uranium U 1789 102

93 237 Neptunium Np 1940 102

94 244 Plutonium Pu 1940 102

95 243 Americium Am 1944 102

96 247 Curium Cm 1944 102

97 247 Berkelium Bk 1949 102

98 251 Californium Cf 1950 102

99 252 Einsteinium Es 1952 102

100 257 Fermium Fm 1952 102

101 258 Mendelevium Md 1955 102

102 259 Nobelium No 1958 102

103 262 Lawrencium Lr 1961 102

104 261 Rutherfordium Rf 1964 4

105 262 Dubnium Db 1967 5

106 266 Seaborgium Sg 1974 6

107 264 Bohrium Bh 1981 7

108 277 Hassium Hs 1984 8

109 268 Meitnerium Mt 1982 9

110 261.9 Darmstadtium Ds 1994 10

111 271.8 Roentgenium Rg 1994 11

112 285 Copernicium Cn 1996 12

113 286 Ununtrium Uut 2003 13

114 289 Flerovium Fl 1998 14

115 288 Ununpentium Uup 2010 15

116 293 Livermorium Lv 2000 16

117 260.9 Ununseptium Uus 2010 17

118 294 Ununoctium Uuo 2006 18

Answer 2

Element name 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

Phosphorus 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

Caesium 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

Ununtrium Uut 113

Flerovium Fl 114

Ununpentium Uup 115

Livermorium Lv 116

Ununseptium Uus 117

Ununoctium Uuo 118