1 / 7

Understanding the Unique Properties of Group 16 Elements: Sulfur, Selenium, and Oxygen

This overview explores the distinct characteristics of Group 16 elements, including sulfur, selenium, and oxygen. It highlights the tendency of these elements to exhibit metallic properties, their ability to form covalent bonds, and their significant roles in biological processes. Key topics include the semiconductor properties of selenium, the discovery of polonium, and the fundamental importance of oxygen in life and ozone formation. Additionally, the Frasch process for sulfur extraction and its resulting compounds are discussed, emphasizing their vital contributions to chemistry.

garson
Télécharger la présentation

Understanding the Unique Properties of Group 16 Elements: Sulfur, Selenium, and Oxygen

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 20.4 20.5 20.6 By Patrick Gaughan

  2. 20.4 6A elements • Tendency for metallic properties as you go down the group. • Configuration n2np4 • Do not behave as typical metals

  3. 20.4 6A elements • Can form Covalent bonds with other non metals • Those with D orbital's can be surrounded by more than 8 electrons • Selenium prevents cancer and is a semi-conductor • Polonium discovered by Madam Carrie. • Radioactive

  4. 20.5Oxygen • Ultra important • Paramagnetic – blue liquid • O2 • Low boiling point • Gaseous • Used in many biological processes

  5. 20.5Oxygen - Ozone • O3 • Resonate • Bond angle 1170 • Vesper model • Ozonolysis • Ozone layer Absorbs UV light UV  Thermal energy O3(g) O2(g) + O(g) light wavelength < 290 nm)

  6. 20.6 Sulfur • Frasch Process • Super heated water • 60% • Sulfur oxides • SO- weak bond • SO2 –most common • SO3 – Resonance

  7. 20.6 Sulfur • Oxy acids • SO3 + H2O  H2SO4 • Extremely important acid • Thiosulfate ion

More Related