An diofar eadar na mùthaidhean a rinneadh air "Sileacon"

|Group=16, gualain14

|At-mass= 28.084–28.086 [g/mol]<ref>http://www.ciaaw.org/atomic-weights.htm</ref>

|1-ion-pot= 786.5 [kJ/mol]

|2-ion-pot= 1577.1 [kJ/mol]

|3-ion-pot= 3231.6 [kJ/mol]}}

'S e [[eileamaid cheimigeach]] a th' ann an '''sileacon''', le [[àireamh atamach]] 14 agus comharra '''Si'''.<ref>{{iomradh lìon | url = http://anseotal.org.uk/results.jsp?query=sileacon | tiotal = sileacon | foillsichear = An Seotal | ceann-là_inntrigidh = 2017-05-29}}</ref>

'S e neo-meatailtmheatailt a tha ann. Tha e a' buntainn don aon buidheann mar [[carbon]], [[staoin]] agus [[luaidhe]] agus tha an feartan coltach ri na feartan carboin.