| Definitions | periodic table
noun
- (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
, 1
, 2
, style="vertical-align: top;" , <br>
, 3
, 4
, 5
, 6
, 7
, 8
, 9
, 10
, 11
, 12
, 13
, 14
, 15
, 16
, 17
, 18
, - align="center"
, Period
, colspan="20" , <br>
, - align="center"
, 1
, bgcolor="- ff6699" , <font color="green">1</font><br>hydrogen, H
, colspan="17" , <br>
, bgcolor=" - 99ccff" , <font color="green">2</font><br>helium, He
, - align="center"
, 2
, bgcolor=" - ff6699" , 3<br>lithium, Li
, bgcolor=" - ff6699" , 4<br>beryllium, Be
, style="vertical-align: top;" , <br>
, colspan="10" , <br>
, bgcolor=" - 99ccff" , 5<br>boron, B
, bgcolor=" - 99ccff" , 6<br>carbon, C
, bgcolor=" - 99ccff" , <font color="green">7</font><br>nitrogen, N
, bgcolor=" - 99ccff" , <font color="green">8</font><br>oxygen, O
, bgcolor=" - 99ccff" , <font color="green">9</font><br>fluorine, F
, bgcolor=" - 99ccff" , <font color="green">10</font><br>neon, Ne
, - align="center"
, 3
, bgcolor=" - ff6699" , 11<br>sodium, Na
, bgcolor=" - ff6699" , 12<br>magnesium, Mg
, style="vertical-align: top;" , <br>
, colspan="10" , <br>
, bgcolor=" - 99ccff" , 13<br>aluminium, Al
, bgcolor=" - 99ccff" , 14<br>silicon, Si
, bgcolor=" - 99ccff" , 15<br>phosphorus, P
, bgcolor=" - 99ccff" , 16<br>sulfur, S
, bgcolor=" - 99ccff" , <font color="green">17</font><br>chlorine, Cl
, bgcolor=" - 99ccff" , <font color="green">18</font><br>argon, Ar
, - align="center"
, 4
, bgcolor=" - ff6699" , 19<br>potassium, K
, bgcolor=" - ff6699" , 20<br>calcium, Ca
, style="vertical-align: top;" , <br>
, bgcolor=" - ccff99" , 21<br>scandium, Sc
, bgcolor=" - ccff99" , 22<br>titanium, Ti
, bgcolor=" - ccff99" , 23<br>vanadium, V
, bgcolor=" - ccff99" , 24<br>chromium, Cr
, bgcolor=" - ccff99" , 25<br>manganese, Mn
, bgcolor=" - ccff99" , 26<br>iron, Fe
, bgcolor=" - ccff99" , 27<br>cobalt, Co
, bgcolor=" - ccff99" , 28<br>nickel, Ni
, bgcolor=" - ccff99" , 29<br>copper, Cu
, bgcolor=" - ccff99" , 30<br>zinc, Zn
, bgcolor=" - 99ccff" , 31<br>gallium, Ga
, bgcolor=" - 99ccff" , 32<br>germanium, Ge
, bgcolor=" - 99ccff" , 33<br>arsenic, As
, bgcolor=" - 99ccff" , 34<br>selenium, Se
, bgcolor=" - 99ccff" , <font color="blue">35</font><br>bromine, Br
, bgcolor=" - 99ccff" , <font color="green">36</font><br>krypton, Kr
, - align="center"
, 5
, bgcolor=" - ff6699" , 37<br>rubidium, Rb
, bgcolor=" - ff6699" , 38<br>strontium, Sr
, style="vertical-align: top;" , <br>
, bgcolor=" - ccff99" , 39<br>yttrium, Y
, bgcolor=" - ccff99" , 40<br>zirconium, Zr
, bgcolor=" - ccff99" , 41<br>niobium, Nb
, bgcolor=" - ccff99" , 42<br>molybdenum, Mo
, bgcolor=" - ccff99" , <font color="red">43</font><br>technetium, Tc
, bgcolor=" - ccff99" , 44<br>ruthenium, Ru
, bgcolor=" - ccff99" , 45<br>rhodium, Rh
, bgcolor=" - ccff99" , 46<br>palladium, Pd
, bgcolor=" - ccff99" , 47<br>silver, Ag
, bgcolor=" - ccff99" , 48<br>cadmium, Cd
, bgcolor=" - 99ccff" , 49<br>indium, In
, bgcolor=" - 99ccff" , 50<br>tin, Sn
, bgcolor=" - 99ccff" , 51<br>antimony, Sb
, bgcolor=" - 99ccff" , 52<br>tellurium, Te
, bgcolor=" - 99ccff" , 53<br>iodine, I
, bgcolor=" - 99ccff" , <font color="green">54</font><br>xenon, Xe
, - align="center"
, 6
, bgcolor=" - ff6699" , 55<br>caesium, Cs
, bgcolor=" - ff6699" , 56<br>barium, Ba
, bgcolor=" - 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> francium, Fr
, 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).
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