Group 16: General Properties and Reactions The oxygen family, also called the chalcogens, consists of the elements found in Group 16 of the periodic table and is considered among the main group elements. The atomic radii or the ionic radii of elements increases while progressing down a group. The chemical and physical properties of oxygen make it different from other elements. Physical Properties of the Chalcogens Atomic/Ionic Radii of the Chalcogens. However, oxygen gas is colourless, odourless, and tasteless. The most common substances, such as oxygen, are states, matter, solids, liquids, gases, and plasma. Oxygen is known to react with other atoms, and works to form rust through oxidization. The elemental structure is a cubic crystal shape. C Si Ge Sn Pb ... CO 2 petroleum and natural gas Silicon is the second most abundant element after oxygen in earth’s crust in form of silicates and silica. Photosynthesis uses energy from the sun to split water into oxygen and hydrogen. The first four elements of this group are collectively known as chalcogens (meaning ore forming elements) because […] These elements all have six electrons in their outermost energy level, accounting for some common chemical properties among them. (b) This is because halogens are reactive non-metals. The oxygen passes into the atmosphere and the hydrogen joins with carbon dioxide to produce biomass. The chalcogen with the lowest atomic radius and ionic radius is oxygen, whereas the chalcogen with the largest atomic/ionic radius (excluding livermorium) is polonium. Overall, the carbon family elements are stable and tend to be fairly unreactive. The chalcogens (/ ˈ k æ l k ə dʒ ɪ n z /) are the chemical elements in group 16 of the periodic table.This group is also known as the oxygen family.It consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and the radioactive element polonium (Po). The elements tend to form covalent compounds, though tin and lead also form ionic compounds. The carbon family elements have widely variable physical and chemical properties. It consists of the elements oxygen, sulfur, selenium, tellurium and polonium. Physical and Chemical Properties of Chalcogens. These can be found in nature in both free and combined states. Oxygen: The chemical configuration of oxygen is 1s 2 2s 2 2p 4. The chemically uncharacterized synthetic element livermorium (Lv) is predicted to be a chalcogen as well. The elements oxygen (O), sulphur (S), selenium (Se), tellurium (Te) and polonium (Po) constitute group 16 elements of the periodic table. The electronic configuration is n s 2 n p 4 . See the article on Oxygen Element for additional information and facts about this substance. Oxygen first appeared in the Earth’s atmosphere around 2 billion years ago, accumulating from the photosynthesis of blue-green algae. The oxygen family consists of the elements that make up group 16 on the periodic table: oxygen, sulfur, selenium, tellurium, and polonium. Physical state and molecular structure of oxygen family - definition The elements of oxygen family have six electrons in the valence shell. It is also the least dense at 0.00143 g/cm 3. Germanium found in traces in … Physical properties of Carbon Family (1) Non-metallic nature : The non-metallic nature decreases along the group. Physical and Chemical Properties of Group 17 Elements Group 17 Elements: The Halogens The elements in Group 17 are: Fluorine Chlorine Bromine Iodine Astatine These elements are known as halogens. Physical Properties Oxygen exists in all three forms - liquid, solid, and gas. The smallest chalcogen is oxygen, which has small atoms having 2 and 6 electrons in its shells. These are named as oxygen family after the name of the first member of the group. The liquid and solid forms are a pale blue colour. (a) Halogen is a Greek word which means salt-former’. Except for lead, all of the carbon family elements exist as different forms or allotropes. they exist naturally in various mineral salts in […]