Which electronic configuration corresponds to an element of group IIIA ?

Related Mcqs:

1. The element having electronic configuration [kr] 4d10, 4f14,5s2,5p6,5d1,6s2 belongs to __________?

   A. S-Block
   B. P-Block
   C. d-Block
   D. f-Block

   Submitted by: Muhammad Ali Kunbhar

2. Boron is non metal while other elements of IIIA group are metals. This is because______________?

   A. it has small size
   B. it has high nuclear charge
   C. it forms molecular addition compounds
   D. all of the above

3. Which of the following represents the correct electronic configuration of VII A group elements in the ground state ?

   A. ns2p2
   B. ns2p4
   C. ns2p5
   D. ns2p6

4. Atomic number of Mn is 25 what is the electronic configuration in the ground state________________?

   A. 1s2 2s2 2p6 3s2 3p6 3d7
   B. 1s2 2s2 2p6 3s2 3p6 4s2 4p5
   C. 1s2 2s2 2p6 3s2 3p5 3d10
   D. 1s2 2s2 2p6 3s2 3p6 4s23d5

5. The correct electronic configuration of Cu is ___________________?

   A. [Ar]4s1
   B. [Ar]4s2
   C. [Ar]3d104s1
   D. [Ar]3d94s2

6. Electronic configuration of K is_________________?

   A. [Ar]4s2
   B. [Ar]4s1
   C. [Kr]5s1
   D. [He]2s1

7. The correct electronic configuration of Cr is____________________?

   A. [Ar]4s23d4
   B. [Ar] 4s23d4
   C. [Ar]4s03d5
   D. [Ar]4s13d5

8. Electronic Configuration of Calcium (Ca) atom may be written as________?

   A. Ne, 4p2
   B. Ar, 4s2
   C. Ne, 4s2
   D. Kr,4p2

   Submitted by: Muhammad Ali Kunbhar

9. Give Electronic configuration of Sodium:

   A. 1s2,2s2,2p6
   B. 1s2,2s2,2p6,3s2
   C. 1s2,2s2,2p6,3s1
   D. None of these

   Submitted by: Naintara Mustafa

10. The properties of an element mosly corresponds to that isotope which has greater_________________?

    A. Mass number
    B. Atomic mass
    C. Relative abundance
    D. all of the above