Question

The atomic number of X Is 12. (symbol is not real )
a. Write the subshell wise electronic configuration of X.
b. Find the group number of this element.
c. Find the period and block of this element.


Please answer fast please ​

Answer 1

Answer:

a. 1s2,2s2,2p6,3s2

b. 2

c. 3rd period. s block element

Explanation:

a. We start filling the subshells according to Afbau principle.

b. As no. of valence electrons is 2, group no. is 2

c. As total no. of principle quantum shells is 3, period no. is 3. Group 1 and 2 belong to s block.