a common element often found in religions is

Element Sources Effects Fluorine (F ion) Natural geological sources, industrial wastes. Causes bone damage, mottled teeth. Lead Plumbing, mining coal, gasoline. Causes anemia, kidney malfunction and nervous disorder. Arsenic Pesticides, chemical wastes, mi..

Apart from the salts which flow down to the sea waters due to weathering of the rocks, a variety of sources, such as land and sea volcanic activity, seismic activity, deposit large amounts of minerals and metals in the ocean. Some of these dissolve in the water and may rest at the ocean bed. Most o..

Third Row Elements - The third row elements are from sodium to argon. The build up of these eight elements proceeds exactly in the same manner as discussed above. Here 3s- and 3p-orbitals are filled in place of 2s- and 2p-orbitals as has been done in case of Li to Ne. ..

Metallic elements occur in the Earth's crust combined with non-metallic elements. After suitable treatment, the compounds are reduced to produce the metal..

(a) Mud and water (c) Mixture of alcohol and wat..

2 and MO type oxides. Their chemistry is characterized by (+2) oxidation state. In general, the heavier p-block elements favor low oxidation states. The most important element of group 15 is phosphorus. It exists in white, red and black allotropic forms. It forms molecular ..

The elements of the third period contain d-orbitals also in addition to s- and p-orbitals. The 3d-orbitals are comparable in energy to the 3s- and 3p-orbitals. These d-orbitals are also involved in the hybridization and they explain the geometries of molecules of elements of thi..

A function is a relation on A x B is which (i) no two second elements have a common first element. (ii) every first element has a corresponding second element...

A set can be formed by using all the common elements of two given sets. Such a collection is called the intersection of the given set..

Qualitative Analysis - The detection of various elements present in an organic compound is called qualitative analysis. Carbon and hydrogen are present in almost all the organic compounds. Other commonly present elements in organic compounds are oxygen, nitrogen, halog..