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OCR 2024 GCSE Chemistry B (Twenty First Century Science) J258/02 Depth in Chemistry (Foundation Tier) With Marking Scheme Merged
OCR 2024 GCSE Chemistry B (Twenty First Century Science) J258/02 Depth in Chemistry (Foundation Tier) With Marking Scheme Merged CHEMISTRY B Oxford Cambridge and RSA Tuesday 11 June 2024 – Morning GCSE (9–1) Chemistry B (Twenty First Century Science) J258/02 Depth in Chemistry (Foundation Tier) Time allowed: 1 hour 45 minutes You must have: F • a ruler (cm/mm) • the Data Sheet for GCSE (9-1) Chemistry B (inside this document) You can use: • a scientific or graphical calculator • an HB pencil * J 2 5 8 0 2 * Please write clearly in black ink. Do not write in the barcodes. Centre number First name(s) Last name INSTRUCTIONS Candidate number • Use black ink. You can use an HB pencil, but only for graphs and diagrams. • Write your answer to each question in the space provided. If you need extra space use the lined page at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. • Where appropriate, your answer should be supported with working. Marks might be given for using a correct method, even if your answer is wrong. INFORMATION • The total mark for this paper is 90. • The marks for each question are shown in brackets [ ]. • Quality of extended response will be assessed in questions marked with an asterisk (*). • This document has 28 pages. ADVICE • Read each question carefully before you start your answer. 2 1 A student makes a model of an atom. (a) The student uses small, coloured beads to represent the protons and neutrons in the nucleus of the model. This is shown in the diagram below. Complete the diagram to show the correct arrangement of electrons in the atom. Use X to represent each electron. Key Proton Neutron Nucleus contains 5 protons and 6 neutrons [2] (b) Complete the sentences. Use words from the list. ions negative neutral neutrons positive protons Atoms contain a nucleus with a ....................................................
£5.00 Preview RemoveAQA AS Organic Chemistry Full Summary
This is a full summary of AQA AS level organic chemistry. It includes all the mechanisms and conditions as well as relevent practical notes. Everything is summarised on two single pages.
£4.38 Preview RemoveThe Octet Rule, Electronegativity, Bonding and Molecular Orbitals
This packed summary tells us about the octet rule in valence electrons, the electronegativity of an atom and what that means for bonding and how different orbitals arise when bonds are made to form compounds and molecules
£2.50 Preview Remove