- Give the electronic configuration of copper (At. no. 29) in terms of s, p, d, f orbitals.
- What is an orbital? Write the shapes of s and p orbitals.
- Give the electronic configuration of silver (At. No. 47) in terms of s, p, d, f orbitals.
- A scientist investing the electron structure of the element concluded that the K, L and M shells were all full and that the N shell contained four electrons. What is the atomic number of that electron?
- For n=4, write all possible values of l and m.
- Discuss how Bhors was able to predict the line spectra of a hydrogen atom.
- Write the electronic configuration of Chromium (At. No. 24) in terms of s.p.d orbitals.
- An atomic orbital has n=3, what are the possible values of l and m?
- What are the values for n, l and m for 2Px orbital?
- An electorn possesses the quantum numbers n=2, l=0 and m=0. What so they mean?
- Write the atomic number of elements whode outermost electornic configuration are represented by (a) 3S1 (b) 3P6.
- What observation did Rutherford led to conclude that the nucleus of atom is very small but heavy mass?
- Why is it that electron does not jump into the nucleus?
- What is meant by atomic spectrum?
- Write the Lewis structure of the compound formed by two elements A and B whose atomic numbers are 12 and 17 respectively.
- What are the values of Principal quantum number (n) and Azimuthal quantum number (l) for the following orbitals: (i) 3S (ii) 4P
- An atom of an element has 24 electrons, what is the total number of S eletrons?
- Give the values of all four quantum number of 11th electorn of Magnesium (At. No. = 12).
- What observations did Rutherford make the following conclusions? a) The atomic centre is positively charged. b) Most of the space inside the atom is hollow.
- Give the values of all four quantum number of outermost electron of sodium atom (Z=11).
- What is Bhor’s-Bury rule?

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