Question 4.7: Silicon is a micromineral needed for the growth of bones, te......

Table 1

a.  From the periodic table, we see that Si, with atomic number 14, has 14 electrons. Place two electrons in each orbital, and single electrons in the highest energy level.

$\overset{1s}{\boxed{\uparrow \downarrow }}$       $\overset{2s}{\boxed{\uparrow \downarrow }}$      $\overset{2p}{\boxed{\uparrow \downarrow } \boxed{\uparrow \downarrow }\boxed{\uparrow \downarrow }}$          $\overset{3s}{\boxed{\uparrow \downarrow }}$      $\overset{3p}{\boxed{\uparrow \space }\boxed{\uparrow \space }\boxed{ { ~_{~}^{~^{~}} } }}$     Orbital diagram for Si

b.  Write the symbol for the preceding noble gas followed by the orbitals for the remaining electrons.

$\left[Ne\right] \overset{3s}{\boxed{\uparrow \downarrow }}\space \space \overset{3p}{\boxed{\uparrow \space }\boxed{\uparrow \space }\boxed{ ~_{~}^{~^{~}} }}$    Abbreviated orbital diagram for Si

c.  List the sublevels in order of filling and add the number of electrons.

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{2}$    Electron configuration for Si

d.  Write the symbol for the preceding noble gas followed by the configuration for the remaining electrons.

$\left[Ne\right] 3s^{2}3p^{2}$      Abbreviated electron configuration for Si