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  1. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    All this sent was Atomic physics Please only like if you found this useful thanks.
  2. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    Radioactive materials in magnetic fields: In a magnetic field that is going into the page (away from the viewer), Fleming’s left hand rule is used to determine the deflection of the charged particles. Alpha particles are deflected upwards (to the left), while beta particles are deflected...
  3. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    Detecting Radioactivity Radioactivity can be detected using several ways: Photograph Film A photograph film can be blackened by radiations The Gold Leaf Electroscope Dry air is normally a good insulator, so a charged electroscope will stay that way, as the charge cannot escape. When an...
  4. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    Types of Radiations Three types of radiations can be emitted during radioactive decay: Alpha Particles 2α4 An alpha particle is a nucleus of Helium – 4. It consists of 2 protons and 2 neutrons. When a nuclide decays by alpha emission, the atomic number decreases by 2 and the mass...
  5. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    Radioactive Decay Most Nuclei are stable because they contain the right balance between protons and neutrons. Nevertheless, not all combinations of protons and neutrons are stable. Some have heavy nuclei that decay in time, emitting radiations needed to reach the balance needed for stability...
  6. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    Rutherford’s Scattering Experiment In 1911, Ernest Rutherford carried out an experiment that lead to a new model of the atom. In that experiment, alpha particles were fired from a Radium source at a thin gold foil (10 mm thick). Detectors were used to find how the alpha particles were...
  7. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    Atomic Physics Latest Syllabus Notes (continued) (Please Like only If you believe this was helpful) Isotopes Some forms of elements are rather unstable, they a carry a heavier load than usual in their nucleus. An isotope is an example. Isotopes are forms of the same element which have the...
  8. Hussein Yasir

    Physics, Chemistry and Biology: Post your doubts here!

    Atomic Physics Latest Syllabus Notes (Please Like only If you believe this was helpful) Introduction about Atoms All Substances are made up of atoms. Atoms are the smallest building blocks of matter. Atoms contain particles, some of which are charged: Electrons are negatively charged...
  9. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    I see
  10. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    Don't you think?
  11. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    I know it will be differnt but the main Ideas will be on all papers to make the exam a bit fair, for example if they put conditional formatting in one of the exams it might also be in the other exams but in a different form (just an example)
  12. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    What about you, for theory which varient?
  13. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    1
  14. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    My first one is in the 17th paper 21 and the second id in the 19th
  15. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    I'm varient one, Look, the moment I finish my exam I'll try my best to tell you guys what the most difficult things in the exam are so you quickly concentrate on them (No promises though)
  16. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    A Anyways, guys I Yes I'm doing in in my school, I'm in Khamis Mushayt, in the southern region
  17. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    Yeah I don't think that makes a problem. Also btw in may/june 2017 v32 there is AverageIf which is not in the book, I guess that's also important, who knows it might appear again?
  18. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    studyingrobot457 , mn096261 ,Akeera , which varients are you guys taking?
  19. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    There is also a possibility that conditional formatting might appear tn this m/j paper as It's in the syllabus and has not yet appeared
  20. Hussein Yasir

    PREPARING TOGETHER FOR IGCSE ICT THEORY AND PRACTICALS

    They will only be available after the feb/march results are out, and the results will be out by mid may
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