Non ionisation - Study guides, Revision notes & Summaries

Nucleons - ANSWERS Protons and neutrons Electrons (location) - ANSWERS Surrounding the nucleus Relative mass of an electron - ANSWERS 1/1840 Strong nuclear force - ANSWERS The way protons and neutrons are held together in the nucleus Electrostatic forces - ANSWERS The attraction between protons and electrons that hold them together in the atom Atomic Number (Z) - ANSWERS The number of protons in the nucleus Mass number (A) - ANSWERS The total number of protons and neutrons in the nuc...

Chemistry AQA AS Questions 100% Correct Answers Mass number -ANSWER Total number of protons and neutrons. Atomic number -ANSWER Numbers of protons in the nucleus and number of electrons in shells. Negative Ions -ANSWER More electrons than protons. Positive ions -ANSWER More protons than electrons. Relative isotopic mass -ANSWER mass of an atom of an isotope of an element on a scale where an atom of carbon12 is 12. Relative atomic mas...

A-level PHYSICS 7408/3BB Paper 3 Section B Medical physics Mark scheme June 2023 Version: 1.0 Final *236A740 /3 /MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this...

BTEC Applied Science Unit 1 Chemistry Exam 271 Questions with Answers How many electrons can an s subshell hold? - CORRECT ANSWER 2 How many electrons can a p subshell hold? - CORRECT ANSWER 6 How many electrons can a d subshell hold? - CORRECT ANSWER 10 Which subshells are available in the first energy level? - CORRECT ANSWER s Which subshells are available in the second energy level? - CORRECT ANSWER s and p Which subshells are available in the third energy level? - CORRECT...

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...

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...

Time allowed: 1 hour 30 minutes INSTRUCTIONS • Use black ink. You may use an HB pencil for graphs and diagrams. • Complete the boxes above with your name, centre number and candidate number. • Answer all the questions. • Where appropriate, your answers should be supported with working. Marks may be given for a correct method even if the answer is incorrect. • Write your answer to each question in the space provided. • Additional paper may be used if required but you must c...

BTEC Applied Science Unit 1 Chemistry 100% correct answers latest 2023 How many electrons can an s subshell hold? 2 How many electrons can a p subshell hold? 6 How many electrons can a d subshell hold? 10 Which subshells are available in the first energy level? s Which subshells are available in the second energy level? s and p Which subshells are available in the third energy level? s, p and d What is Hund's rule? Orbitals must all be singly fi...

AQA A level Chemistry - Group 2 Already Passed As you go down the group, atomic radius increases As you go down the group, ionisation energy decreases As you go down the group, melting point (WHY) generally decreases as the metallic bonding gets weaker due to the atomic radius increasing 3 factors affecting metallic bonding 1. Charge on ion 2. Atomic radius 3. No. of delocalized electrons in the cloud Be with water No reaction Mg with steam Mg + H2O(g) > MgO + H2 Mg with water Mg + 2H2O...

Quality Assurance Basics Exam 62 Questions with Verified Answers Why do we need Quality Assurance? (primary objective) - CORRECT ANSWER To enable prompt and accurate image diagnosis What are the 3 secondary objectives to QA? - CORRECT ANSWER 1. To maintain the quality of diagnostic images 2. to minimise the radiation exposure to patient and staff 3. to be cost effective Who is Responsible for Quality Assurance Programs? - CORRECT ANSWER Radiologist in charge But ultimately everyone i...