Tiêu đề AS Chemistry Complete topical By Al=Chemist.pdf ✅

Resource Pack By Faiz Unit 1 AS Chemistry ☺ Al-Chemist 1 Faiz Ul Hassan Khan ( Al-Chemist) 0321-9070007 1.1 Particles in the atom and atomic radius & 1.2 Isotopes Q1(Q1 Paper 11 Nov 2021 ) The mass spectrum of a sample of neon is shown. The relative abundance of each peak is written in brackets above it. Q2(Q1 Paper 12 March 2021) The table shows the numbers of protons, neutrons and electrons in four different particles, W, X, Y, and Z. Q3(Q1 Paper 11 Nov 2020) Which statement is correct? A Cl has a relative isotopic mass of 35.5. B Cl 2 has a relative molecular mass of 70. C ICl has a relative molecular mass of 162.4. D NaCl has a relative molecular mass of 58.5. Q4(Q31 Paper 12 Nov 2020) The symbol for a phosphorus ion is 3315P3− . The symbol for a potassium ion is 3719K+. What do these two ions have in common? 1 the same number of electrons 2 the same number of neutrons 3. the same number of protons Faiz Ul Hassan (Al-Chemist)
Resource Pack By Faiz Unit 1 AS Chemistry ☺ Al-Chemist 2 Faiz Ul Hassan Khan ( Al-Chemist) 0321-9070007 Q5 ( Q1 c Paper 22 Nov 2020) Hydron is a general term used to represent the ions Q6 ( Q1 Paper 22 June 2020) Gallium is an element in Group 13. A sample of gallium is analysed using a mass spectrometer. The mass spectrum produced is shown. Faiz Ul Hassan (Al-Chemist)
Resource Pack By Faiz Unit 1 AS Chemistry ☺ Al-Chemist 3 Faiz Ul Hassan Khan ( Al-Chemist) 0321-9070007 Q7( Q1 Paper 12 March 2020) What number of protons, neutrons and electrons are present in the ion 54Fe3+? Q8 (Q1 c Paper 22 Nov 2019) Silicon is found in many compounds in the Earth’s crust. Silicon has only three naturally occurring isotopes, Faiz Ul Hassan (Al-Chemist)
Resource Pack By Faiz Unit 1 AS Chemistry ☺ Al-Chemist 4 Faiz Ul Hassan Khan ( Al-Chemist) 0321-9070007 Q9(Q2 Paper 11 June 2019) A sample of element X is analysed using mass spectrometry. The mass spectrum obtained is shown. Q10.(Q2 Paper 12 June 2019) Oxygen has three stable isotopes, 16O, 17O and 18O. All three isotopes are present in a sample of oxygen gas, O2, which was analysed using a mass spectrometer. How many peaks associated with the O2 + ion would be expected? A 3 B 5 C 6 D 9 Q11(Q2 Paper 13 June 2019) The mass spectrum of an alloy of copper and gold is shown Faiz Ul Hassan (Al-Chemist)