PPT-Write a 3 mark definition for the first ionisation energy.

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 . 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 Today: Biorhythms. Knowledge. Mark. Plan. . Write. Knowledge. Biorhythms….. On a . mwb. , write a question you find difficult. . You have 3 minutes to find the answer to that question using your pack and write it on the back of the . 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. (n. ). A state or condition markedly different from the . norm. The fact that it’s still 85 degrees in late October is an . aberration. – it should be cooler.. 1. Write . the word, the definition, and the example sentence.. instincts. always correct?. 1. Are our “gut” . instincts. always correct?. No…”Intuition is important, but we often underestimate its perils.”. 2. . Page 16. : Find this sentence in the text, and fill-in the missing words. “Chapters to come will show that experiments have found people greatly _______________________ their lie detection accuracy, their __________________________________ recollections, their interviewee assessments, their _______________ predictions, and their stock-picking talents. (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.. •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. .