Ionisation Study guides, Class notes & Summaries

Module 3 Model Questions And Answers State one benefit of adding chlorine to water (1) - Answer-Kills germs Suggest one possible hazard of adding chlorine to drinking water (1) - Answer-It is toxic Explain the decrease in the atomic radii across the period from Na to Cl (3) - Answer-1) nuclear charge increases 2) electron shielding remains the same 3) greater attraction to nucleus Describe and explain the trend, down the group, in the reactivity of the Group 2 elements with water (5) -...

TOF steps - 1) ionisation 2) acceleration 3) ion drift 4) detection 5) analysis Electron impact - Sample vaporised and electron gun fires high energy electrons at it which knock off 1 electron from each particle, making them 1+ ions NB- can knock off more than one e or break molecular ion electrospray ionization - Sample dissolved in volatile solvent then injected through needle to give fine mist which is attached to positive end of high voltage power supply, particles gain proton ...

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...

Chemistry A Level Edexcel 2023 Exam Questions And Complete Solutions Mass spectrometry - ANSWER using lasers to ionise atoms into cations, then measure the abundance and mass using their mass-to-charge ratios Mass to charge ratio - ANSWER the mass of an ion divided by its charge (usually +1 in mass spectrometry) units: m/z relative atomic mass - ANSWER the average mass of an atom of an element relative to 1/12 of an atom of the isotope C-12 relative isotopic mass - ANSW...

AQA AS Chemistry Paper 1 – Inorganic and Physical Chemistry Predicted Paper 2023 with markscheme attached. Name …………………………………………………………………… Date ………………… 1 hour 30 minutes allowed You should have access to the AQA insert (periodic table and data sheet) to help with answering the questions. You should spend around 65 minutes on section A and 25 minutes on section B. Grade boundaries These are VERY rough guesses!...

AQA a level physics paper 1 100% SOLUTIONS REVISED 2023//2024 What is meant by work function (2) - ANSWER Minimum energy required by an electron to escape from (1) a metal surface (1) What is meant by ionisation energy? (2) - ANSWER Minimum energy required to remove an electron from an atom (1) from the ground state (1) Why do emitted electrons have a kinetic energy that varies up to a maximum value? (4) - ANSWER Energy of a photon is fixed/constant (1) Energy is required for ele...

This question is about the elements in Period 3. 0 1 . 1 Give the full electron configuration of the element in Period 3 with the highest first ionisation energy. [1 mark] 0 1 . 2 Give an equation, including state symbols, to represent the process that occurs when the second ionisation energy of sodium is measured. [1 mark] 0 1 . 3 Table 1 shows some successive ionisation energies for an element in Period 3. Table 1 Ionisation number 1 2 3 4 5 6 7 8 Ionisation energy / kJ mol– Ide...

What is meant by work function (2) - ANSWER Minimum energy required by an electron to escape from (1) a metal surface (1) What is meant by ionisation energy? (2) - ANSWER Minimum energy required to remove an electron from an atom (1) from the ground state (1) Why do emitted electrons have a kinetic energy that varies up to a maximum value? (4) - ANSWER Energy of a photon is fixed/constant (1) Energy is required for electrons to overcome work function ø (1) Electrons deeper into/below ...

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...

aqa a level physics paper 1 What is meant by work function (2) - ANS Minimum energy required by an electron to escape from (1) a metal surface (1) What is meant by ionisation energy? (2) - ANS Minimum energy required to remove an electron from an atom (1) from the ground state (1) Why do emitted electrons have a kinetic energy that varies up to a maximum value? (4) - ANS Energy of a photon is fixed/constant (1) Energy is required for electrons to overcome work function ø (1) Elec...