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Related Searches: group members three elements of group dynamics elements of group dynamics behavior elements of group dynamics stage
Group 16 Elements (Chalcogens) - Introduction
Oxygen, sulphur, selenium, tellurium and polonium constitute the group 16 of the periodic table of elements. The first four elements are collectively called CHALCOGENS. The name derives from the Greek word for bronze and points to the association of sulphur and i..
Predicting Period, Group and Block of an Element
>The number of electrons in the valence and penultimate shell determines the group to which the element belongs. 's' block element = number of valence electrons ('ns' electrons) 'p' block element = 10 + number of valence electrons ('ns' and 'np' electrons) 'd..
Group 1 (IA) Element - Hydrogen
Group 1 (IA) Element - Hydrogen..
Group 1 (IA) Element - Hydrogen..Group 15 (VA) Element - Nitrogen
Daniel Rutherford, a Scottish Physician, discovered nitrogen in 1772. But it was Lavoisier, who proved that nitrogen is an element and that it was not a supporter of combustion and respiration. He called it 'azote' meaning 'no life'. The name 'Nitrogen' was given to it by Jean Antoi..
Physical Characteristics Group 16 Elements
Physical Characteristics Group 16 Elements - The important physical properties of the elements of group 16 are recorded as shown below: Some physical properties of the elements of group 16 Property Oxygen Sulphur Selenium Tellurium Poloniu..
Group 14 (IVA) Element - Carbon
Carbon is an extremely important element and was known from the earliest times in the form of charcoal, soot, etc. Although the amount of carbon in the earth's crust is only eleventh by mass, it ranks as high as oxygen and hydrogen, in importance. In nature, it occurs mainly as coal..
Group 1 (IA) Element - Hydrogen
Sources and Discovery of Hydrogen - Hydrogen is the lightest substance known and the most abundant element in the universe. It has a mass of just 0.09 g per litre at normal temperature and pressure. Though it is present in abundance in celestial bodies, like the sun and stars, it is not p..
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