Chemistry > p Block Elements > 8.0 Properties of Silicon
p Block Elements
1.0 Group $13$ – The Boron Family
2.0 Boron
3.0 Compounds of boron
4.0 Compounds of Aluminium
5.0 Group $14$ – The Carbon family
6.0 Allotropes of Carbon
7.0 Compounds of Carbon
8.0 Properties of Silicon
9.0 Group $15$-The Nitrogen Family
10.0 Oxides of nitrogen
10.1 Nitrogen Oxide $N_2O$ or Laughing gas (Neutral)
10.2 Nitric Oxide $NO$ (Neutral)
10.3 Nitrogen trioxide $N_2O_3$
10.4 Nitrogen dioxide or Di-nitrogen tetroxide $NO_2$ or $N_2O$
10.5 Nitrogen pentaoxide $N_2O_5$
11.0 Oxyacids of Nitrogen
11.1 Nitric acid $HNO_3$
11.2 Oxidation of Metalloid and Inorganic compounds by Nitric acid
11.3 Action of Metals & Proteins
12.0 Phosphorus
13.0 Oxygen
14.0 Sulphur
8.1 Compounds of Silicon
10.2 Nitric Oxide $NO$ (Neutral)
10.3 Nitrogen trioxide $N_2O_3$
10.4 Nitrogen dioxide or Di-nitrogen tetroxide $NO_2$ or $N_2O$
10.5 Nitrogen pentaoxide $N_2O_5$
11.2 Oxidation of Metalloid and Inorganic compounds by Nitric acid
11.3 Action of Metals & Proteins
1. Silicates:
They are the compounds in which the anions are either discrete $Si{O_4}^{4 - }$ units or a number of such units combine together as shown in the figure.
$Si{O_4}^{4 - }$ tetrahedron is shown in which small open circles represent oxygen atoms and centre dot represents the silicon atom.
Silicates are classified on the basis of number of corners of $Si{O_4}^{4 - }$ tetrahedron shared with other units as follows:
- Orthosilicates: They do not share ant corner.
- Pyrosilicate: Two tetrahedra share one corner to form $S{i_2}{O_7}^{6 - }$ anion.
- Cyclic or ring silicates: Two corners of each tetrahedron are shared to form closed rings.
- Chain silicates, sheet silicates and three dimensional silicates.
