Question

Element "E" belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above "E" in the group is

• A. 3 s 2, 3 p 4
• B. 3 d 10, 4 s 2, 4 p 4
• C. 4 d 10, 5 s 2, 5 p 4
• D. 2 s 2, 2 p 4

Answer 1

Answer: (A)

3 s 2, 3 p 4

Answer 2

The correct answer is (A) : 3 s 2, 3 p 4
Element E is Selenium
The element which is just above ‘E’ in periodic table is sulphur, its electronic configuration is 1 s 2, 2 s 2, 2 p 6, 3 s 2, 3 p 4.
$E⇒[Ar]^3d^10^4s^24p^4$
Element above $E⇒[Ne]3s^23p^4$