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Class XI Chemistry Atomic Structure 8

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Question 1

Consider the ground state of Cr atom (Z=24). The numbers of electrons with the azimuthal quantum numbers, l=1 and 2 are respectively

Question 2

Which electron orbitals are designated by
(i) n=2, l = 1, m =0;
(ii) n=3, l = 2, m= 0;
(iii)n=4, l =2, m=1 and
(iv) n=5, l =3, m=3 respectively?

Question 3

‘No two electrons in an atom can have the same set of quantum numbers.’ This principle is Known by which one of the following?

Question 4

Using MOT, compare O₂⁺ and O₂^- species and choose the incorrect option.

Question 5

The two electrons have the following sets of quantum numbers :
P = 3, 2, -2, + $Description: E:\KCET-1-Feb\KARNATAKA-PAPER-2015_files\image061.png$ , Q = 3, 0, 0, + $Description: E:\KCET-1-Feb\KARNATAKA-PAPER-2015_files\image061.png$
Which of the following statements is true?

Question 6

Among the elements from atomic number 1 to 36, the number of elements which have an unpaired electron in their s–subshell is

Question 7

Which one of the following sets of quantum numbers represents the highest energy level in an atom?

Question 8

The set of quantum numbers for the outermost electron for copper in its ground state is

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