Ionisation energies Study guides, Revision notes & Summaries

AQA A Level Chemistry Definitions questions and answers latest top score. Relative Atomic Mass - ANS.The weighted mean mass of an atom of an element relative to 1/12 of the mass of one atom of carbon-12 First Ionisation energy - ANS.The energy required to remove an electron from each atom in one mole of gaseous atoms Acid - ANS.A species that is a proton donor Activation Energy - ANS.The minimum energy required to start a reaction by the brea...

2 OCR 2023 SECTION A You should spend a maximum of 25 minutes on this section. Write your answer to each question in the box provided. 1 Which statement explains the trend in boiling points down the halogens group? A Covalent bonds become stronger. B Induced dipole–dipole interactions (London forces) become stronger. C Ionic bonds become stronger. D Permanent dipole–dipole interactions become stronger. Your answer [1] 2 A hydrocarbon contains 85.71% carbon by mass. What is the em...

Inorganic AS AQA Chemistry What is a d-block (or f-block) element? - CORRECT ANSWER-An element that forms one or more stable ions with a partially filled d (or f) orbital What is an s-block (or p-block) element? - CORRECT ANSWER-An element with its outer electrons in the s (or p) orbitals What is the scientific name for the rows on the Periodic Table? - CORRECT ANSWER-Periods What is the scientific name for the columns on the Periodic Table? - CORRECT ANSWER-Groups What does the group numbe...

Martin Caon Examination Questions and Answers in Basic Anatomy and Physiology Third Edition Chapter 17: Ionising Radiation 17.1 Medical Imaging with X-Radiation X-ray photons directed at a patient do one of three things: 1. Pass straight through the patient (who is mostly empty space) without deviating from their trajectory, to strike the detector and form the medical image. 2. Are stopped within the patient by ionising some of the patient’s atoms, leaving their energy in the pat...

AQA AS CHEMISTRY 7404/1 Paper 1 Inorganic and Physical Chemistry Version: 1.0 Final *JUN* IB/M/Jun23/E7 7404/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 Section B TOTAL Tuesday 16 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructi...

AQA A-Level Chemistry - Periodicity Exam 2024/2025 Questions With Completed & Verified Solutions.

Group 2 Exam Questions and Answers 2023 Graded A Use the Periodic Table to deduce the full electron configuration of calcium. 1s2 2s2 2p6 3s2 3p6 4s2 Write an ionic equation, with state symbols, to show the reaction of calcium with an excess of water. Ca(s)+ 2H2O(l) → Ca2+(aq) + 2OH-(aq) + H2(g) State the role of water in the reaction with calcium. Oxidising agent Write an equation to show the process that occurs when the first ionisation energy of calcium is measured. Ca(g) → Ca+(...

Definition for rate of reaction - correct answearsthe change in concentration of a reactant or product per unit of time Definition of a covalent bond - correct answearsthe strong electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms Definition of an ionic bond - correct answearsthe electrostatic attraction between 2 oppositely charged ions Definition of an isomer - correct answearsatoms with the same number of protons but different numbers of n...

EDEXCEL A LEVEL 2023 CHEMISTRY (ii) Explain which of chromium or calcium most easily forms a +2 ion using all of the data in the table. - correct answersCalcium forms 2+ more readily as the sum of 1 and 2 ionisation energies are lower Calcium has a lower nucleur charge So less attraction between outer electrons and nucleus (ii) Give a reason why the silver nitrate must be acidified. 1 - correct answersTo remove the carbonate ions 2 Chemists often use the term 'orbital' when consid...

This question is about ionisation energies of Group 2 elements. . Explain why the first ionisation energy of the Group 2 elements decreases down the group. [2 marks] . Give an equation, including state symbols, to represent the process that occurs when the third ionisation energy of magnesium is measured. [1 mark] . Explain why the third ionisation energy of magnesium is much higher than the second ionisation energy of magnesium.