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Definitions
periodic table
noun 
  1. (chemistry) A tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same column.
<center>, - align="center"
, Group
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, 2
, style="vertical-align: top;" , <br>
, 3
, 4
, 5
, 6
, 7
, 8
, 9
, 10
, 11
, 12
, 13
, 14
, 15
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, 18
, - align="center"
, Period
, colspan="20" , <br>
, - align="center"
, 1
, bgcolor="
  1. ff6699" , <font color="green">1</font><br>hydrogen, H
    , colspan="17" , <br>
    , bgcolor="
  2. 99ccff" , <font color="green">2</font><br>helium, He
    , - align="center"
    , 2
    , bgcolor="
  3. ff6699" , 3<br>lithium, Li
    , bgcolor="
  4. ff6699" , 4<br>beryllium, Be
    , style="vertical-align: top;" , <br>
    , colspan="10" , <br>
    , bgcolor="
  5. 99ccff" , 5<br>boron, B
    , bgcolor="
  6. 99ccff" , 6<br>carbon, C
    , bgcolor="
  7. 99ccff" , <font color="green">7</font><br>nitrogen, N
    , bgcolor="
  8. 99ccff" , <font color="green">8</font><br>oxygen, O
    , bgcolor="
  9. 99ccff" , <font color="green">9</font><br>fluorine, F
    , bgcolor="
  10. 99ccff" , <font color="green">10</font><br>neon, Ne
    , - align="center"
    , 3
    , bgcolor="
  11. ff6699" , 11<br>sodium, Na
    , bgcolor="
  12. ff6699" , 12<br>magnesium, Mg
    , style="vertical-align: top;" , <br>
    , colspan="10" , <br>
    , bgcolor="
  13. 99ccff" , 13<br>aluminium, Al
    , bgcolor="
  14. 99ccff" , 14<br>silicon, Si
    , bgcolor="
  15. 99ccff" , 15<br>phosphorus, P
    , bgcolor="
  16. 99ccff" , 16<br>sulfur, S
    , bgcolor="
  17. 99ccff" , <font color="green">17</font><br>chlorine, Cl
    , bgcolor="
  18. 99ccff" , <font color="green">18</font><br>argon, Ar
    , - align="center"
    , 4
    , bgcolor="
  19. ff6699" , 19<br>potassium, K
    , bgcolor="
  20. ff6699" , 20<br>calcium, Ca
    , style="vertical-align: top;" , <br>
    , bgcolor="
  21. ccff99" , 21<br>scandium, Sc
    , bgcolor="
  22. ccff99" , 22<br>titanium, Ti
    , bgcolor="
  23. ccff99" , 23<br>vanadium, V
    , bgcolor="
  24. ccff99" , 24<br>chromium, Cr
    , bgcolor="
  25. ccff99" , 25<br>manganese, Mn
    , bgcolor="
  26. ccff99" , 26<br>iron, Fe
    , bgcolor="
  27. ccff99" , 27<br>cobalt, Co
    , bgcolor="
  28. ccff99" , 28<br>nickel, Ni
    , bgcolor="
  29. ccff99" , 29<br>copper, Cu
    , bgcolor="
  30. ccff99" , 30<br>zinc, Zn
    , bgcolor="
  31. 99ccff" , 31<br>gallium, Ga
    , bgcolor="
  32. 99ccff" , 32<br>germanium, Ge
    , bgcolor="
  33. 99ccff" , 33<br>arsenic, As
    , bgcolor="
  34. 99ccff" , 34<br>selenium, Se
    , bgcolor="
  35. 99ccff" , <font color="blue">35</font><br>bromine, Br
    , bgcolor="
  36. 99ccff" , <font color="green">36</font><br>krypton, Kr
    , - align="center"
    , 5
    , bgcolor="
  37. ff6699" , 37<br>rubidium, Rb
    , bgcolor="
  38. ff6699" , 38<br>strontium, Sr
    , style="vertical-align: top;" , <br>
    , bgcolor="
  39. ccff99" , 39<br>yttrium, Y
    , bgcolor="
  40. ccff99" , 40<br>zirconium, Zr
    , bgcolor="
  41. ccff99" , 41<br>niobium, Nb
    , bgcolor="
  42. ccff99" , 42<br>molybdenum, Mo
    , bgcolor="
  43. ccff99" , <font color="red">43</font><br>technetium, Tc
    , bgcolor="
  44. ccff99" , 44<br>ruthenium, Ru
    , bgcolor="
  45. ccff99" , 45<br>rhodium, Rh
    , bgcolor="
  46. ccff99" , 46<br>palladium, Pd
    , bgcolor="
  47. ccff99" , 47<br>silver, Ag
    , bgcolor="
  48. ccff99" , 48<br>cadmium, Cd
    , bgcolor="
  49. 99ccff" , 49<br>indium, In
    , bgcolor="
  50. 99ccff" , 50<br>tin, Sn
    , bgcolor="
  51. 99ccff" , 51<br>antimony, Sb
    , bgcolor="
  52. 99ccff" , 52<br>tellurium, Te
    , bgcolor="
  53. 99ccff" , 53<br>iodine, I
    , bgcolor="
  54. 99ccff" , <font color="green">54</font><br>xenon, Xe
    , - align="center"
    , 6
    , bgcolor="
  55. ff6699" , 55<br>caesium, Cs
    , bgcolor="
  56. ff6699" , 56<br>barium, Ba
    , bgcolor="
  57. 66ffcc" ,
    • <br>
      , bgcolor="
    • ccff99" , 71<br>lutetium, Lu
      , bgcolor="
    • ccff99" , 72<br>hafnium, Hf
      , bgcolor="
    • ccff99" , 73<br>tantalum, Ta
      , bgcolor="
    • ccff99" , 74<br>tungsten, W
      , bgcolor="
    • ccff99" , 75<br>rhenium, Re
      , bgcolor="
    • ccff99" , 76<br>osmium, Os
      , bgcolor="
    • ccff99" , 77<br>iridium, Ir
      , bgcolor="
    • ccff99" , 78<br>platinum, Pt
      , bgcolor="
    • ccff99" , 79<br>gold, Au
      , bgcolor="
    • ccff99" , <font color="blue">80</font><br>mercury, Hg
      , bgcolor="
    • 99ccff" , 81<br>thallium, Tl
      , bgcolor="
    • 99ccff" , 82<br>lead, Pb
      , bgcolor="
    • 99ccff" , 83<br>bismuth, Bi
      , bgcolor="
    • 99ccff" , 84<br>polonium, Po
      , bgcolor="
    • 99ccff" , 85<br>astatine, At
      , bgcolor="
    • 99ccff" , <font color="green">86</font><br>radon, Rn
      , - align="center"
      , 7
      , bgcolor="
    • ff6699" , 87<br>&nbsp;francium, Fr&nbsp;
      , bgcolor="
    • ff6699" , 88<br>radium, Ra
      , bgcolor="
    • 66ffcc" , <br>
      , bgcolor="
    • ccff99" , <font color="red">103</font><br>lawrencium, Lr
      , bgcolor="
    • ccff99" , <font color="red">104</font><br>rutherfordium, Rf
      , bgcolor="
    • ccff99" , <font color="red">105</font><br>dubnium, Db
      , bgcolor="
    • ccff99" , <font color="red">106</font><br>seaborgium, Sg
      , bgcolor="
    • ccff99" , <font color="red">107</font><br>bohrium, Bh
      , bgcolor="
    • ccff99" , <font color="red">108</font><br>hassium, Hs
      , bgcolor="
    • ccff99" , <font color="red">109</font><br>meitnerium, Mt
      , bgcolor="
    • ccff99" , <font color="red">110</font><br>darmstadtium, Ds
      , bgcolor="
    • ccff99" , <font color="red">111</font><br>roentgenium, Rg
      , bgcolor="
    • ccff99" , <font color="red">112</font><br>ununbium, Uub
      , bgcolor="
    • 99ccff" , <font color="red">113<br>ununtrium, Uut</font>
      , bgcolor="
    • 99ccff" , <font color="red">114</font><br>ununquadium, Uuq
      , bgcolor="
    • 99ccff" , <font color="red">115<br>ununpentium, Uup</font>
      , bgcolor="
    • 99ccff" , <font color="red">116<br>ununhexium, Uuh</font>
      , bgcolor="
    • ecfefe" , <font color="
    • cccccc">117<br>ununseptium, Uus</font>
      , bgcolor="
    • ecfefe" , <font color="
    • cccccc">118<br>ununoctium, Uuo</font>
      , - align="center"
      , colspan="21" , <br>
      , - align="center"
      , colspan="4" align="right" ,
    • lanthanides
      , bgcolor="
    • 66ffcc" , 57<br>lanthanum, La
      , bgcolor="
    • 66ffcc" , 58<br>cerium, Ce
      , bgcolor="
    • 66ffcc" , 59<br>praseodymium, Pr
      , bgcolor="
    • 66ffcc" , 60<br>neodymium, Nd
      , bgcolor="
    • 66ffcc" , <font color="red">61</font><br>promethium, Pm
      , bgcolor="
    • 66ffcc" , 62<br>samarium, Sm
      , bgcolor="
    • 66ffcc" , 63<br>europium, Eu
      , bgcolor="
    • 66ffcc" , 64<br>gadolinium, Gd
      , bgcolor="
    • 66ffcc" , 65<br>terbium, Tb
      , bgcolor="
    • 66ffcc" , 66<br>dysprosium, Dy
      , bgcolor="
    • 66ffcc" , 67<br>holmium, Ho
      , bgcolor="
    • 66ffcc" , 68<br>erbium, Er
      , bgcolor="
    • 66ffcc" , 69<br>thulium, Tm
      , bgcolor="
    • 66ffcc" , 70<br>ytterbium, Yb
      , - align="center"
      , colspan="4" align="right" ,
      actinides
      , bgcolor="
    • 66ffcc" , 89<br>actinium, Ac
      , bgcolor="
    • 66ffcc" , 90<br>thorium, Th
      , bgcolor="
    • 66ffcc" , 91<br>protactinium, Pa
      , bgcolor="
    • 66ffcc" , 92<br>uranium, U
      , bgcolor="
    • 66ffcc" , <font color="red">93</font><br>neptunium, Np
      , bgcolor="
    • 66ffcc" , <font color="red">94</font><br>plutonium, Pu
      , bgcolor="
    • 66ffcc" , <font color="red">95</font><br>americium, Am
      , bgcolor="
    • 66ffcc" , <font color="red">96</font><br>curium, Cm
      , bgcolor="
    • 66ffcc" , <font color="red">97</font><br>berkelium, Bk
      , bgcolor="
    • 66ffcc" , <font color="red">98</font><br>californium, Cf
      , bgcolor="
    • 66ffcc" , <font color="red">99</font><br>einsteinium, Es
      , bgcolor="
    • 66ffcc" , <font color="red">100</font><br>fermium, Fm
      , bgcolor="
    • 66ffcc" , <font color="red">101</font><br>mendelevium, Md
      , bgcolor="
    • 66ffcc" , <font color="red">102</font><br>nobelium, No, -
      , bgcolor="
    • CCFF99" , d-block
      , bgcolor="
    • 66FFCC" , f-block
      , bgcolor="
    • 99CCFF" , p-block
      , bgcolor="
    • FF6699" , s-block
      Color coding for atomic numbers:
      • Elements numbered in <font color="blue">blue</font> are liquids at standard temperature and pressure, Standard Temperature and Pressure (STP);
      • those in <font color="green">green</font> are gases at standard temperature and pressure, STP;
      • those in <font color="black">black</font> are solid at standard temperature and pressure, STP;
      • those in <font color="red">red</font> are Synthetic element, synthetic (all are solid at standard temperature and pressure, STP).
      • those in <font color="
      • 808080">gray</font> have not yet been discovered (they also have muted filled colors indicating the likely chemical series they would fall under).
Translations: 
  • Dutch: periodiek systeem (der elementen)
    • Finnish: jaksollinen jí¤rjestelmí¤(fi)
    • German: Periodensystem (der Elemente)
         
 
  

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