PPT-Acids - Ionisation

All acids ionise in solution to give ions HCl H Cl 100 HCl H 2 O H 3 O aq Cl aq H 2 O H H. Jelle Kaastra. with. . Ton . Raassen. , . Liyi. . Gu. , . Junjie. Mao, . Igone. . Urdampilleta. , . Missagh. . Mehdipour. SRON & Leiden University. Introduction. X-ray emitting plasmas everywhere:. plasma analysis. Jelle Kaastra. Introduction. What is a . photoionised. plasma?. Plasma where apart from interaction with particles also . interaction with photons . occurs. Photon spectrum needs to . Definition of the first ionisation energy. The energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of ions with a single positive charge is called the first ionisation energy.. •Define first ionisation energy and successive ionisation energy.. •Explain the factors that influence ionisation energies.. •Predict the number of electrons in each shell as well as the element’s group, using successive ionisation energies.. First ionisation energy The first ionisa tion energy of an element is the energy required to remove one electron from each of a mole of free gaseous atoms of that element to form 1 mole of gaseous IONISATION ENERGY CONTENTS • What is Ionisation Energy? • Definition of 1st Ionisation Energy • What affects Ionisation Energy? • General variation across periods • Appendix B The Ionisation Energy Diagnostic Instrument (IEDI) Choose the most suitable option and the reason for your choice in each question by filling the appropriate circles in the answer sheet. I Periodicity . REVISION. Elements are the simplest substances and consist of one type of atom.. They are arranged in the Periodic table in increasing atomic number.. NEW LEARNING. Grouping elements by bonding and structure – focus on Titanium. The Periodic Table. 1) Explain . the changes in ionisation energy of elements across each period, and down each group (refer to nuclear charge, atomic radius and electron shielding)..  . 2) Describe . (Chpt. 7). Atomic radius . (size). Ionization energy. Electronegativity. The three properties of elements whose changes across the periodic table are to be investigated are:. Trends in Atomic Radii. REVISION. Elements are the simplest substances and consist of one type of atom.. They are arranged in the Periodic table in increasing atomic number.. NEW LEARNING. Grouping elements by bonding and structure – focus on Titanium. Learning Objectives:. Define first ionisation energy.. Write equations for first and successive ionisation energies.. Explain the factors affecting ionisation energy.. Describe the trends in ionisation energies in Period 3 and Group 2.. Jelle Kaastra. with. . Ton . Raassen. , . Liyi. . Gu. , . Junjie. Mao, . Igone. . Urdampilleta. , . Missagh. . Mehdipour. SRON & Leiden University. Introduction. X-ray emitting plasmas everywhere:. •Explain the factors that influence ionisation energies.. •Predict the number of electrons in each shell as well as the element’s group, using successive ionisation energies.. Key Words:. Electrons, first ionisation energy, successive ionisation energies, electron shielding. .