Chemistry chapter 1

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اود ان أعرف من ادراة المنتدى ليه بيحذفوا مواضيع الكيمياء بالانجليزية طيب ماهو فى 100 منتدى اخر شكرا للادراة
Q5 Give scientific reason for?
(1) The electron density at the node of p orbitals is zero
(2) The 4th electron of p sublevel of oxygen atom is paired with another in the same sublevel instead of occupying the (3s) sublevel
(3) S1p3 can’t be written in ground state of the atom
The two electrons in a given orbital spin opposite to each other

Q1 look to the figure which show the angle of deflection of alpha particles when pass near by the nuclei of the two atoms A&B. which has a greater atomic number? Why?
Q2
(1) How do the orbitals of the 2p sublevel differ from each other
(2) How do the orbitals of the 2p differ from the orbitals of p sublevel
(3) Which of the following orbitals of the sublevel can’t be allowed
a. 4s sublevel b. 2f orbitals c. 2d sublevel e. 1p sublevel
(4) compare between the number of s, p, d &f sublevels in the heaviest known atom in ground state
(5) what is maximum number of electrons that can go into each of the following ------ give reason?
a. 3s b. 2px c. energy level M d. 4f e. 5f
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