Chemistry
High School (11–12)
The p-Block Elements › Groups 13 and 14: Boron and Carbon FamiliesChapter 10The p-Block Elements: Groups 13 and 14
A drinks can, a pencil lead, a diamond, a window pane and the eyewash in a first-aid box are made of the elements of two neighbouring groups of the periodic table. We follow the boron family and the carbon family: their trends, why boron and carbon behave differently from their neighbours, and the structures and reactions of borax, boric acid, diborane, aluminium compounds, the oxides of carbon, silicates and silicones. The chapter serves the Indian syllabus (NCERT, NEET, JEE Main) and the matching topics of A-Level, IB and AP Chemistry. Python tables the data, counts the bonds of a fullerene and builds silicate formulae.
Part of Chemistry · High School (11–12) (chapter 10)
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The Boron Family: Boron, Borax and Aluminium
Gallium melts in your hand, an aluminium can does not rust, and boric acid is safe enough for an eyewash. We read the trends of group 13, see why boron is the odd one out, and study borax, boric acid, diborane and the compounds of aluminium.
The Carbon Family: Allotropes, Oxides and Silicon
Diamond and pencil lead are both pure carbon, and sand and glass are both built from silicon. We follow group 14 from carbon down to lead: the allotropes of carbon, the oxides of carbon, silicon and the silicates, silicones and zeolites.