Sub shells - Study guides, Revision notes & Summaries

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...

AS-Level Chemistry :Paper 1 2024 latest update graded a+ Arranged in periods (rows) and groups (columns) by atomic (proton) number - CORRECT ANSWER-How is the periodic table arranged Have the same number of electrons shells, even if they are not all parts of the s or p sub-shells - CORRECT ANSWER-All elements within a period ... Have the same number of electrons in their outer shell, meaning that they all have similar proper...

What is the peak called on mass spec? correct answersMolecular ion How do you calculate relative atomic mass? correct answers(mass no x abundance%) + (mass no x abundance%) / 100 What is nuclear fusion? correct answersWhen 2 light atomic nuclei fuse together to form a heavier nucleus of a new element. What did John Dalton discover? correct answersFound atoms are solid spheres made of tiny particles. What did J.J Thompson discover? correct answersThe plum pudding model: ball of positi...

AS level OCR Chemistry Exam Questions And Answers (Verified And Updated) Isotopes - answerDifferent atomic forms of the same element. Atoms with the same number of protons but a different number of neutrons Relative atomic mass - answerThe mean mass of an atom of an element, compared to 1/12th of the mass of an atom of carbon-12 Concentration= - answerNumber of moles ÷ Volume One mole - answer6.02×10^23 Number of moles= - answermass ÷ molar mass r.t.p - answer25 ºC 100 kPa (1 atm) ...

Ca Applicators Study Course Exam Questions and Answers 100% Pass What is a Trade Name - Correct Answer ️️ -The name given to the product by the manufacture. What are Inert Ingredients - Correct Answer ️️ -Ingredients with no pesticide action. What is the Signal Word - Correct Answer ️️ -Danger, Warning or Caution, which denotes Toxicity What are Re Entry Levels - Correct Answer ️️ -The amount of time or condition of the application before an unprotected person may enter t...

Basic reactor theory lesson 1&2 PHYSICS/SCIENCE LATEST EDITION 2024/25 GUARANTEED GRADE A+ Binding energy The energy equivalent of the mass defect; the amount of energy released when a nucleus is formed from its component parts, also the amount of energy that must be supplied to a nucleus to separate it into its components Bohr model A model of the atom proposed by Nobel Laureate Niels Bohr in 1913 that describes the atom as composed of a dense, positively-charged nucleus with electrons orbi...

What is the equation linking mass moles and MR? Mass=moles * MR What is the definition of Ar (relative atomic mass)? The average mass of an atom of an element compared to the mass of one twelfth of carbon 12. What does Mr stand for? Relative molecular mass Define relative isotopic mass. The mass of an isotope of an element compared to the mass of one twelfth of the mass of carbon 12 What is the relative mass of an electron? 1/1840 What is an isotope? Isotopes of an element are ato...

Question Marking guidance Additional Comments/Guidelines Mark 01.1 the outer electron is in a higher (energy) level / there is an increase in shielding / the atoms get larger / more shells There is a weaker attraction between the nucleus and the outer electron. Mark independently 1 1 (2 x AO1) Question Marking guidance Additional Comments/Guidelines Mark 01.2 Mg2+(g) → Mg3+(g) + e– Mg2+(g) + e– → Mg3+(g) + 2 e– 1 (AO2) ...

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▪ Atomic number - Ans .Number of protons in an element ▪ Mass number - Ans .Number of protons and neutrons ▪ Ion - Ans .Electrically charged particle formed by the loss/gain of electrons ▪ Relative masses of P,N and E - Ans .1,1, 1/2000 (respectively) ▪ Isotopes - Ans .Atoms of the same element with different number of neutrons but same number of protons. ▪ What are steps of mass spectroscopy? - Ans .Ionisation, Acceleration, Deflection, Detecting ▪ Ionisation - Ans .A gase...