classification of matter on basis of chemical properties
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Periodic table
Group123 456789101112131415161718Alkali metalsAlkaline earth metalsPnictogensChalcogensHalogensNoble gasesPeriod
1
Hydrogen1H1.008Helium2He4.00262Lithium3Li6.94Beryllium4Be9.0122Boron5B10.81Carbon6C12.011Nitrogen7N14.007Oxygen8O15.999Fluorine9F18.998Neon10Ne20.1803Sodium11Na22.990Magnesium12Mg24.305Aluminium13Al26.982Silicon14Si28.085Phosphorus15P30.974Sulfur16S32.06Chlorine17Cl35.45Argon18Ar39.9484Potassium19K39.098Calcium20Ca40.078Scandium21Sc44.956Titanium22Ti47.867Vanadium23V50.942Chromium24Cr51.996Manganese25Mn54.938Iron26Fe55.845Cobalt27Co58.933Nickel28Ni58.693Copper29Cu63.546Zinc30Zn65.38Gallium31Ga69.723Germanium32Ge72.630Arsenic33As74.922Selenium34Se78.971Bromine35Br79.904Krypton36Kr83.7985Rubidium37Rb85.468Strontium38Sr87.62Yttrium39Y88.906Zirconium40Zr91.224Niobium41Nb92.906Molybdenum42Mo95.95Technetium43Tc[98]Ruthenium44Ru101.07Rhodium45Rh102.91Palladium46Pd106.42Silver47Ag107.87Cadmium48Cd112.41Indium49In114.82Tin50Sn118.71Antimony51Sb121.76Tellurium52Te127.60Iodine53I126.90Xenon54Xe131.296Caesium55Cs132.91Barium56Ba137.33Lanthanum57La138.91Hafnium72Hf178.49Tantalum73Ta180.95Tungsten74W183.84Rhenium75Re186.21Osmium76Os190.23Iridium77Ir192.22Platinum78Pt195.08Gold79Au196.97Mercury80Hg200.59Thallium81Tl204.38Lead82Pb207.2Bismuth83Bi208.98Polonium84Po[209]Astatine85At[210]Radon86Rn[222]7Francium87Fr[223]Radium88Ra[226]Actinium89Ac[227]Rutherfordium104Rf[267]Dubnium105Db[268]Seaborgium106Sg[269]Bohrium107Bh[270]Hassium108Hs[270]Meitnerium109Mt[278]Darmstadtium110Ds[281]Roentgenium111Rg[282]Copernicium112Cn[285]Nihonium113Nh[286]Flerovium114Fl[289]Moscovium115Mc[290]Livermorium116Lv[293]Tennessine117Ts[294]Oganesson118Og[294]Cerium58Ce140.12Praseodymium59Pr140.91Neodymium60Nd144.24Promethium61Pm[145]Samarium62Sm150.36Europium63Eu151.96Gadolinium64Gd157.25Terbium65Tb158.93Dysprosium66Dy162.50Holmium67Ho164.93Erbium68Er167.26Thulium69Tm168.93Ytterbium70Yb173.05Lutetium71Lu174.97 Thorium90Th232.04Protactinium91Pa231.04Uranium92U238.03Neptunium93Np[237]Plutonium94Pu[244]Americium95Am[243]Curium96Cm[247]Berkelium97Bk[247]Californium98Cf[251]Einsteinium99Es[252]Fermium100Fm[257]Mendelevium101Md[258]Nobelium102No[259]Lawrencium103Lr[266]
1 (red)=Gas 3 (black)=Solid 80 (green)=Liquid 109 (gray)=Unknown Color of the atomic number shows state of matter (at 0 °C and 1 atm)
Primordial From decay Synthetic Border shows natural occurrence of the element
Standard atomic weight (Ar)[1]
Ca: 40.078 — Formal short value, rounded (no uncertainty)[2]
Po: [209] — mass number of the most stable isotope
Background color shows subcategory in the metal–metalloid–nonmetal trend:
MetalMetalloidNonmetalUnknown
chemical
propertiesAlkali metalAlkaline earth metalLanthanideActinideTransition metal
e
Periodic table
Group123 456789101112131415161718Alkali metalsAlkaline earth metalsPnictogensChalcogensHalogensNoble gasesPeriod
1
Hydrogen1H1.008Helium2He4.00262Lithium3Li6.94Beryllium4Be9.0122Boron5B10.81Carbon6C12.011Nitrogen7N14.007Oxygen8O15.999Fluorine9F18.998Neon10Ne20.1803Sodium11Na22.990Magnesium12Mg24.305Aluminium13Al26.982Silicon14Si28.085Phosphorus15P30.974Sulfur16S32.06Chlorine17Cl35.45Argon18Ar39.9484Potassium19K39.098Calcium20Ca40.078Scandium21Sc44.956Titanium22Ti47.867Vanadium23V50.942Chromium24Cr51.996Manganese25Mn54.938Iron26Fe55.845Cobalt27Co58.933Nickel28Ni58.693Copper29Cu63.546Zinc30Zn65.38Gallium31Ga69.723Germanium32Ge72.630Arsenic33As74.922Selenium34Se78.971Bromine35Br79.904Krypton36Kr83.7985Rubidium37Rb85.468Strontium38Sr87.62Yttrium39Y88.906Zirconium40Zr91.224Niobium41Nb92.906Molybdenum42Mo95.95Technetium43Tc[98]Ruthenium44Ru101.07Rhodium45Rh102.91Palladium46Pd106.42Silver47Ag107.87Cadmium48Cd112.41Indium49In114.82Tin50Sn118.71Antimony51Sb121.76Tellurium52Te127.60Iodine53I126.90Xenon54Xe131.296Caesium55Cs132.91Barium56Ba137.33Lanthanum57La138.91Hafnium72Hf178.49Tantalum73Ta180.95Tungsten74W183.84Rhenium75Re186.21Osmium76Os190.23Iridium77Ir192.22Platinum78Pt195.08Gold79Au196.97Mercury80Hg200.59Thallium81Tl204.38Lead82Pb207.2Bismuth83Bi208.98Polonium84Po[209]Astatine85At[210]Radon86Rn[222]7Francium87Fr[223]Radium88Ra[226]Actinium89Ac[227]Rutherfordium104Rf[267]Dubnium105Db[268]Seaborgium106Sg[269]Bohrium107Bh[270]Hassium108Hs[270]Meitnerium109Mt[278]Darmstadtium110Ds[281]Roentgenium111Rg[282]Copernicium112Cn[285]Nihonium113Nh[286]Flerovium114Fl[289]Moscovium115Mc[290]Livermorium116Lv[293]Tennessine117Ts[294]Oganesson118Og[294]Cerium58Ce140.12Praseodymium59Pr140.91Neodymium60Nd144.24Promethium61Pm[145]Samarium62Sm150.36Europium63Eu151.96Gadolinium64Gd157.25Terbium65Tb158.93Dysprosium66Dy162.50Holmium67Ho164.93Erbium68Er167.26Thulium69Tm168.93Ytterbium70Yb173.05Lutetium71Lu174.97 Thorium90Th232.04Protactinium91Pa231.04Uranium92U238.03Neptunium93Np[237]Plutonium94Pu[244]Americium95Am[243]Curium96Cm[247]Berkelium97Bk[247]Californium98Cf[251]Einsteinium99Es[252]Fermium100Fm[257]Mendelevium101Md[258]Nobelium102No[259]Lawrencium103Lr[266]
1 (red)=Gas 3 (black)=Solid 80 (green)=Liquid 109 (gray)=Unknown Color of the atomic number shows state of matter (at 0 °C and 1 atm)
Primordial From decay Synthetic Border shows natural occurrence of the element
Standard atomic weight (Ar)[1]
Ca: 40.078 — Formal short value, rounded (no uncertainty)[2]
Po: [209] — mass number of the most stable isotope
Background color shows subcategory in the metal–metalloid–nonmetal trend:
MetalMetalloidNonmetalUnknown
chemical
propertiesAlkali metalAlkaline earth metalLanthanideActinideTransition metal
shrutijagtap369:
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Matter can be classified into two basic categories. Matter is either a mixture or it is a pure substance. We can classify mixtures into two categories - Homogeneous mixtures and heterogeneous mixtures. We can also classify pure substances into two categories - Elements and compounds.
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