Chemistry - Inorganic chemistry with 100% Correct Answers | Verified | Updated

Chemistry - Inorganic chemistry with 100% Correct Answers | Verified | Updated What are the rules for working out an oxidation state that you need to remember? - answer1. Monoatomic elements are 0 2.Identical elements are 0 3.H is always 1+ Define oxidation - answerloss of electrons Define reducing agent - answersomething that gives up an electron and itself is oxidized Define reduction - answergain of electrons Define oxidising agent - answer•Readily accept electrons •Substance that is reduced What are the steps you need to follow to write a half equation? - answerBalance main element if necessary Work out the oxidation state of main element Balance using electrons Balance oxygen by using water Balance using H+ What do you need to do when combining two half equations? - answerMake sure the have the same electrons if not then multiply What is a disproportionation reaction? - answerA redox reaction in which the same element is both oxidised and reduced Explain the following trend for group 2 elements; atomic radius, first ionisation energy, melting point - answerAtomic radius: increases as they gain more energy levels First ionisation: decreases down the group as the outer electron is in higher energy so increased shielding & distance from nucleus so weaker Mp: Decreases down the group Explain why group 2 metals have a smaller atomic radius than the preceding group 1 metal -