- Guías de estudio, Notas de estudios & Resúmenes
¿Buscas las mejores guías de estudio, notas de estudio y resúmenes para ? En esta página encontrarás 9 documentos de estudio para .
9 resultados
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1C Mark Scheme Summer 2024
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1C Mark Scheme Summer 2024
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 2C Mark Scheme Summer 2024
PopularPearson Edexcel International GCSE In Chemistry (4CH1) Paper 2C Mark Scheme Summer 2024
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 2CR Mark Scheme Summer 2024
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 2CR Mark Scheme Summer 2024
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1CR Mark Scheme Summer 2024
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1CR Mark Scheme Summer 2024
Lote
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1C ,1CR ,2C and 2CR Mark Scheme JUNE 2024
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1C ,1CR ,2C and 2CR Mark Scheme JUNE 2024
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 2CR Mark Scheme Summer 2024
Question number 
Answer Notes Marks 
1 (a) (i) B (3) 
 
A is not the correct answer because sulfur is not in period 2 C is not the correct answer because sulfur is not in period 4 D is not the correct answer because sulfur is not in period 6 
 1 
 
 (ii) D (2−) 
 
A is not the correct answer because the charge on a sulfide ion is not 1+ B is not the correct answer because the charge on a sulfide ion is not 2+ C is not the correct answer because the charge on a sulfide ion...
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 2C
Question number 
Answer Notes Marks 1 (a) (i) sulfur ALLOW S 1 (ii) beryllium ALLOW Be 1 (iii) boron ALLOW B 1 
 
 (iv) 2,8,4 / 2.8.4 ACCEPT diagram showing electron configuration 
 
 1 
 
 (b) An explanation that links the following three points 3 M1 the outer shell is further from the nucleus in sodium/sodium has more shells/sodium has a larger atomic radius ORA ALLOW a sodium atom is larger than a lithium atom 
 
AL...
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1CR Mark Scheme Summer 2024
Question number 
Answer Notes Marks 1 (a) (i) W 1 
 
 (ii) V 1 
 
 (iii) Z 1 
 
 (b) (i) the number of protons (in the nucleus) IGNORE reference to electrons 
 
ALLOW amount of protons 
1 
 
 (ii) (the sum of) the number of protons and neutrons (in the nucleus) ALLOW amount of protons and neutrons 1 
 total for question = 5 
 
 
Question number 
Answer Notes Marks 2 (a) oxygen ALLOW O2 1 
 
 (b) M1 carbon dioxide / C...
Examen
Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1C Mark Scheme Summer 2024
Question number 
Answer Notes Marks 
1 (a) 
 
Description Substance a good conductor of electricity lithium 
an element that is a liquid at room temperature 
bromine 
a substance that can be used to form a polymer 
ethene 
an element that forms a basic oxide 
lithium 
a substance that has a giant covalent structure 
diamond 
 
 
 
 
 
ALLOW Li 
 
 
ALLOW Br/Br2 REJECT Br− 
 
ALLOW C2H4 
 
 
ALLOW Li 
 
 
 
 
 
5 
 
 (b) A descript...