Question

${\huge {\mathscr{\fcolorbox {blue}{pink}{\fcolorbox {\pink}{blue}{\color {pink}QUESTION}}}}}}$

$\purple\longrightarrow$ The electronic configuration of an element 'X' is 2,8,6. To which group and period of the modern periodic table does 'X' belong. State its valency.​

Answer 1

$\huge \sf \pink{Answer:-}$

• Element 'X' is sulphur(2,8,6)
• Thus, it's atomic number will be =2+8+6=16

Thus the element is Si

It belongs to p-block of periodic table.

Its electronic configuration can also be written as [Ne] $\therefore \sf \red 3s2 \: 3p4$

Thus it belongs to $\sf \red{ \ 3 {r}^{d}}$period

Group number =16

• Its valency will be 8−6=2