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it is a 2 mark question so thats all you probably need. flavour just shows they interact with the strong force

Question: the internal structure of a proton and neutron, did you have to talk about flavour of the quarks or was that extra?

Had to talk about it having a comparable wave length to an atom. How he predicted matter had a wave like nature

The role of conservation laws where Pauli's prediction of the Neutrino and Chadwicks discovery of the neutron?

How did everyone feel about the Quanta section?

Re: General Thoughts: Physics 5. is c as it is a group 3 element. which makes a P type semiconductor

(c) (i) simultaneous Eqn then use discriminant to find where the intercepts/roots of new equation, are = (ie equal 0), rearrange and get it in the form needed. (ii) lim r-> 0 gave c>1/4, since there are two distinct points of interception with y=x^2, c>1/2. otherwise the two points become one...