Predict the period, group and block of an element having electronic configuration 1s22s22p63s23p4 .

Question

Predict the period, group and block of an element having electronic configuration 1s22s22p63s23p4 . (A) Period=3r d,block=p,group=16 (B) Period=3r d,block=p,group=10 (C) Period=4t h,block=d,group=12 (D) Period=5t h,block=s,group=1

Tardigrade Admin · Accepted Answer

By observing principal quantum number (n), Orbital (.s,p,d,f.) and equating no. of e- ’s we are able to find the period, block and group of element in periodic table.

Q. Predict the period, group and block of an element having electronic configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}$ .

$P er i o d = 3^{r d}, b l oc k = p, g ro u p = 16$

$P er i o d = 3^{r d}, b l oc k = p, g ro u p = 10$

$P er i o d = 4^{t h}, b l oc k = d, g ro u p = 12$

$P er i o d = 5^{t h}, b l oc k = s, g ro u p = 1$

By observing principal quantum number (n), Orbital $(s, p, d, f)$ and equating no. of $e^{-}$ ’s

we are able to find the period, block and group of element in periodic table.

Q. Predict the period, group and block of an element having electronic configuration 1s22s22p63s23p4 .

Period=3rd,block=p,group=16

Period=3rd,block=p,group=10

Period=4th,block=d,group=12

Period=5th,block=s,group=1