A. [Ar]4s2
B. [Ar]4s1
C. [Kr]5s1
D. [He]2s1
Related Mcqs:
- The correct electronic configuration of Cu is ___________________?
A. [Ar]4s1
B. [Ar]4s2
C. [Ar]3d104s1
D. [Ar]3d94s2 - 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 - The correct electronic configuration of Cr is____________________?
A. [Ar]4s23d4
B. [Ar] 4s23d4
C. [Ar]4s03d5
D. [Ar]4s13d5 - 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 - 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 - 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-BlockSubmitted by: Muhammad Ali Kunbhar
- Electronic Configuration of Calcium (Ca) atom may be written as________?
A. Ne, 4p2
B. Ar, 4s2
C. Ne, 4s2
D. Kr,4p2Submitted by: Muhammad Ali Kunbhar
- Give Electronic configuration of Sodium:
A. 1s2,2s2,2p6
B. 1s2,2s2,2p6,3s2
C. 1s2,2s2,2p6,3s1
D. None of theseSubmitted by: Naintara Mustafa
- 50% inversion of configuration of molecules take place in a___________________?
A. E1 – reaction
B. E2 – reaction
C. SN1 – reaction
D. SN2 – reaction - An element has electronic conviguration 1s2 2s2 2p2. It belongs to__________________?
A. Group II-A
B. Group IV-A
C. Group VII-A
D. Group VI-A