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

Related Mcqs:

1. 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

2. The correct electronic configuration of Cu is ___________________?

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

3. Electronic configuration of K is_________________?

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

4. The correct electronic configuration of Cr is____________________?

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

5. Which electronic configuration corresponds to an element of group IIIA ?

   A. 1s2 2s2 2p3
   B. 1s2 2s2 2p6 3s2 3p1
   C. 1s2 2s2 2p4
   D. 1s2 2s2 2p6 3s2 3p6 4s2 3d1

6. 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

7. 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

8. 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

9. Percentage of calcium in calcium carbonate is___________________?

   A. 80%
   B. 30%
   C. 40%
   D. 20%

10. 50% inversion of configuration of molecules take place in a___________________?

    A. E1 – reaction
    B. E2 – reaction
    C. SN1 – reaction
    D. SN2 – reaction