Is selenium a type of sulfur?
how can two different elements be same.
Sulfur is in group 16. Other members are oxygen, selenium, tellurium and polonium and in some respects their chemistry is similar. The elemnt most like sulfur is selenium and to a lesser extent tellurium. Polonium is a metal, and oxygen has a high electronegativity which has a major effect on the chemistry
The Group 6A is the one where there are observed variations of properties of the elements. For example, Polonium is a metal, tellurium is a metalloid and selenium, sulfur and oxygen are nonmetals. Though, there are like properties, such as: all the elements form oxygen-compounds and sodium-compounds. In the Group 6A the 2nd and 3rd period elements have different structures: oxygen has an allotrope (O3) and sulfur has many allotropes. Sulfur, tellurium and selenium are…
Oxygen is a component of air (21 %) and of many oxides. Sulfur is a component of many sulfides, sulfates, hydrogen sulfide. Selenium are frequently associated with sulfur ores. Tellurium exist as tellurides, tellurites or tellurates but it is a rare element. Polonium exist in traces in uranium or thorium ores.