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Periodic Table. Dr. Umesh Chandra.
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Arrangement of elements based on their Atomic Number (Proton Number).
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Group I: The alkali metals. a = atomic number X = symbol b = relative atomic mass Period 1 Period 2 Period 3 Period 4 Period 5 Period 6 Period 7 Li Lithium Na Sodium 23 Potas Rb Rubi dum Caesiwn 133 Be Beryllium 12 Mg MV'esium Sr Strontium Ba Banum 137 Key: 45 to Lu 48 Zr Zirconium 91 H"nium 178 51 Nb 93 T anta lum 181 Mo Tungsten 184 Techretiurn R he-num Iron 56 Ruthenorn 101 Ovnium Cobalt 59 Rho&um 103 Iridum 192 59 Pd Palladium 106 Platinum 195 Ag Silver 108 Gold 197 65 Cd 112 Hg Mercury 201 In Indum Thallium (D mum Sn 119 207 Anemic 75 Sb Animony 79 Tellura:n 128 Po Polonium I Odire 127 At Astatine Helium Krypto n Xe 131 Rn.
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Group II: The alkaline earth metals. a = atomic number X = symbol b = relative atomic mass Period 1 Period 2 Period 3 Period 4 Period 5 Period 6 Period 7 Li Lithium Na Sodium 23 Potas Rb Rubi dum Caesiwn 133 Be Beryllium 12 Mg MV'esium Sr Strontium Ba Banum 137 Key: 45 to Lu 48 Zr Zirconium 91 H"nium 178 51 Nb 93 T anta lum 181 Mo Tungsten 184 Techretiurn R he-num Iron 56 Ruthenorn 101 Ovnium Cobalt 59 Rho&um 103 Iridum 192 59 Pd Palladium 106 Platinum 195 Ag Silver 108 Gold 197 65 Cd 112 Hg Mercury 201 In Indum Thallium (D mum Sn 119 207 Anemic 75 Sb Animony 79 Tellura:n 128 Po Polonium I Odire 127 At Astatine Helium Krypto n Xe 131 Rn.
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Group VII: The halogens. a = atomic number X = symbol b = relative atomic mass Period 1 Period 2 Period 3 Period 4 Period 5 Period 6 Period 7 Li Lithium Na Sodium 23 Potas Rb Rubi dum Caesiwn 133 Be Beryllium 12 Mg MV'esium Sr Strontium Ba Banum 137 Key: 45 to Lu 48 Zr Zirconium 91 H"nium 178 51 Nb 93 T anta lum 181 Mo Tungsten 184 Techretiurn R he-num Iron 56 Ruthenorn 101 Ovnium Cobalt 59 Rho&um 103 Iridum 192 59 Pd Palladium 106 Platinum 195 Ag Silver 108 Gold 197 65 Cd 112 Hg Mercury 201 In Indum Thallium (D mum Sn 119 207 Anemic 75 Sb Animony 79 Tellura:n 128 Po Polonium I Odire 127 At Astatine Helium Krypto n Xe 131 Rn.
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Group VIII: Inert gases or noble gases. a = atomic number X = symbol b = relative atomic mass Period 1 Period 2 Period 3 Period 4 Period 5 Period 6 Period 7 Li Lithium Na Sodium 23 Potas Rb Rubi dum Caesiwn 133 Be Beryllium 12 Mg MV'esium Sr Strontium Ba Banum 137 Key: 45 to Lu 48 Zr Zirconium 91 H"nium 178 51 Nb 93 T anta lum 181 Mo Tungsten 184 Techretiurn R he-num Iron 56 Ruthenorn 101 Ovnium Cobalt 59 Rho&um 103 Iridum 192 59 Pd Palladium 106 Platinum 195 Ag Silver 108 Gold 197 65 Cd 112 Hg Mercury 201 In Indum Thallium (D mum Sn 119 207 Anemic 75 Sb Animony 79 Tellura:n 128 Po Polonium I Odire 127 At Astatine Helium Krypto n Xe 131 Rn.
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Metalloids. a = atomic number X = symbol b = relative atomic mass Period 1 Period 2 Period 3 Period 4 Period 5 Period 6 Period 7 Li Lithium Na Sodium 23 Potas Rb Rubi dum Caesiwn 133 Be Beryllium 12 Mg MV'esium Sr Strontium Ba Banum 137 Key: 45 to Lu 48 Zr Zirconium 91 H"nium 178 51 Nb 93 T anta lum 181 Mo Tungsten 184 Techretiurn R he-num Iron 56 Ruthenorn 101 Ovnium Cobalt 59 Rho&um 103 Iridum 192 59 Pd Palladium 106 Platinum 195 Ag Silver 108 Gold 197 65 Cd 112 Hg Mercury 201 In Indum Thallium (D mum Sn 119 207 Anemic 75 Sb Animony 79 Tellura:n 128 Po Polonium I Odire 127 At Astatine Helium Krypto n Xe 131 Rn.
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a = atomic number X = symbol b = relative atomic mass Period 1 Period 2 Period 3 Period 4 Period 5 Period 6 Period 7 Li Lithium Na Sodium 23 Potas Rb Rubi dum Caesiwn 133 Be Beryllium 12 Mg MV'esium Sr Strontium Ba Banum 137 Key: 45 to Lu 48 Zr Zirconium 91 H"nium 178 51 Nb 93 T anta lum 181 Mo Tungsten 184 Techretiurn R he-num Iron 56 Ruthenorn 101 Ovnium Cobalt 59 Rho&um 103 Iridum 192 59 Pd Palladium 106 Platinum 195 Ag Silver 108 Gold 197 65 Cd 112 Hg Mercury 201 In Indum Thallium (D mum Sn 119 207 Anemic 75 Sb Animony 79 Tellura:n 128 Po Polonium I Odire 127 At Astatine Helium Krypto n Xe 131 Rn.
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Metals, Non-metals, and Metalloids | CK-12 Foundation.
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Periodic property – means repeating pattern in the periodic table.
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[image] z'8'8'z wmssepd z'8'z wmsau6ew z'z wn!lK.aeq.
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[image] Electronic structure of the first three elements in Group VII. Symbol Proton number Electronic structure Element Fluorine Chlorine Bromine Cl 9 35.
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[image] lithium 2,1. [image] sodium 2,8,1. [image] '8'8'Z tun!ssepd.