ONLINE LIBRARY

Questions relating to Atoms, Orbitals and Electron Configurations: To test whether you know all that you need to know you must try to answer these questions before you look at the answers! You may wish to refer to a periodic table when answering the following questions. Atoms: 1.  How many electrons are there in N 3- ? 2.  What is the atomic mass unit for an atom of bromine? Answers...... Orbtials: 1.  What are the quantum numbers that describe a 3p orbital? 2.  How many occupied valence orbitals are there in Cl and I? 3.  What are the quantum numbers for an electron in a 3s orbital? Answers..... Electron Configurations: Use the information given in the box below when answering the next three questions: (a)  [Ar] (d)  1s 2 2s 2 2p 6 3s 2 3p x 2 3p y 1 (b)  1s 2 2s 2 2p 6 3s 1 (e)  1s 2 2s 2 2p 6 3s 2 3p x 1...

PHOTOSYNTHESIS The Characteristics, Equation and Stages of Photosynthesis The Chemical Equation for Photosynthesis 1. What is the primary energy source of living organisms on earth 3 ? The sun, the center of our planetary system and a star in the Milky Way galaxy (our galaxy), is the source of the energy processed and consumed by living organisms. Intense nuclear reactions in the sun release light and other energy radiation into the surrounding space. Some of this energy reaches our planet. 3. What is the chemical equation for photosynthesis? The chemical equation for photosynthesis is the following: 6 CO₂ + 6 H₂O + light --> C₆H₁₂O₆ + 6 O₂ Chloroplasts and Chlorophyll 4. What living organisms are responsible for photosynthesis?  What cell organelle is responsible for the absorption of light in the photosynthesis process in plants and algae? There are many organisms (including all animals) that do not use photosynthesis. Th...