Ionisation energies Study guides, Revision notes & Summaries

Inorganic AS AQA Chemistry Exam With 100% Correct Answers 2024 What is a d-block (or f-block) element? - answerAn 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? - answerAn element with its outer electrons in the s (or p) orbitals What is the scientific name for the rows on the Periodic Table? - answerPeriods What is the scientific name for the columns on the Periodic Table? - answerGroups What does the group nu...

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...

What is the correct definition of "emission"? correct answer: The release of energy in the form of a photon as an electron transitions to a lower energy level What is the correct definition of an "excited state"? correct answer: All energy states other than ground state until ionisation threshold (E=0). How is the energy of a particle with restricted motion best described? (ie. an electron bound to an atom) correct answer: There are an infinite number of discrete energies possible f...

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...

Edexcel A level Chemistry Questions With 100% Complete Solutions Ionisation energy trend in Group 2 - ANSWERS As you go down the group first ionisation energy decreases because: - Although nuclear charge is increasing - The electrons have an extra quantum shell of shielding making them easier to remove - They exist in a higher energy orbital (and/ or a further distance from the nucleus) Reactivity trend in group 2 - ANSWERS Group 2 elements become more reactive going down a gr...

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+(...

first ionisation energy - correct answer the energy required to remove one electron from each atom in a mole of gaseous atoms to form one mole of gaseous 1+ ions second ionisation energy - correct answer the energy required to remove one electron from each ion in one mole of gaseous 1+ ions to form one mole of gaseous 2+ ions factors affecting ionisation energy - correct answer at...

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+(...

SECTION A You should spend a maximum of 20 minutes on this section. Answer all the questions. 1 Which row shows the atomic structure of 55Mn2+? Protons Neutrons Electrons A 25 30 23 B 25 55 23 C 27 30 25 D 30 25 28 Your answer 2 The Group 2 elements react with water, forming a solution and a gas. Which statement is correct? A The reactivity of the elements decreases down Group 2. B The pH of the solution formed increases down Group 2. C The reaction is a neutralisation. D The equa...

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...