Non ionisation - Study guides, Revision notes & Summaries

Nebosh Diploma Unit B, Top Exam Questions and answers, 100% Accurate. Health Surveillance Definition - -The assessment of the state of health of an employee, as related to exposure to substances hazardous to health and includes biological monitoring". Biological Monitoring - -Biological monitoring is concerned with the measurement or assessment of hazardous substances or their metabolites in tissues, secretions or expired air. Occupational Health Definition - -The promotion and maint...

Year 11 Chem - Module 1 questions and answers latest updateMixture A combination of two or more pure substances in which each pure substance retains its individual chemical properties. Heterogeneous Mixtures Two or more substances intermingle but remain physically separate. Possible to separate the original ingredients by simple physical means, such as filtering, centrifuge, decanting or sedimentation. Examples: dirt + sand, oil + water, salt + baking soda 01:10 01:33 H...

Isotope atoms which have the same number of protons and electrons but different numbers of neutrons. specific charge the ratio of charge to mass of a particle. Charge/Mass . Nuclear force an attractive force that acts between all nuclear particles that are extremely close together, such as protons and neutrons in a nucleus to hold the atom together. alpha particles (a) 2 protons and 2 neutrons (helium nucleus) beta particles (b) a high speed electron gamma...

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...

AQA A Level Chemistry Definitions Relative Atomic Mass - answerThe 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 - answerThe energy required to remove an electron from each atom in one mole of gaseous atoms Acid - answerA species that is a proton donor Activation Energy - answerThe minimum energy required to start a reaction by the breaking of bonds Addition Polymer - answerThe process in which unsaturated alkene...

1. How many electrons can an s subshell hold? 2 2. How many electrons can a p subshell hold? 6 3. How many electrons can a d subshell hold? 10 4. Which subshells are available in the first energy level? 5. Which subshells are available in the second en- ergy level? 6. Which subshells are available in the third energy level? s s and p s, p and d 7. What is Hund's rule? (Think bus seats!) Every orbital in a sub- shell must be singly filled with an electron before any one orbital can be d...

This assignment is about the ionising and non ionising radiation. This assignment include 4 scenarios. I achieved D on this assignment for both aims.

BTEC Applied Science Unit 1 Chemistry Define Oscillation - A regularly repeating motion about central value Define the energy level of an electron. - One of the fixed, allowed, values of energy for an electron that is bound to an atom. Define the term 'action potential - The impulse passed along the axon Define the term 'resting potential - When the neurone is not transmitting an action potential. During this time the K+/Na+ pump is at work Define the term 'synaps...

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...

How many electrons are in a 12Mg 24 2+ ion? A 10 B 12 C 14 D 22 Your answer [1] 2 What is the formula of chromium(III) sulfate? A Cr3SO4 B Cr(SO4)3 C Cr2(SO4)3 D Cr3SO3 Your answer [1] 3 Which molecule is non-polar? A SF6 B H2S C PF3 D NH3 Your answer [1] 3 © OCR 2021 H032/01 Turn over 4 Which row is correct? Highest pH when added to water Most reactive halogen A MgO F2 B MgO I2 C BaO F2 D BaO I2 Your answer [1] 5 Which equation represents a redox reaction? A Mg ...