Structural Formula And Electron Dot Structure Of Chlorine.

Part 1: Structural formula of Chlorine

• Atomic number of Chlorine is 17, and its electronic configuration is$1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^5$.
• The structural formula for Chlorine$\left(\mathrm{Cl}\right)$ is:

• The first shell$\left(\mathrm{K}\right)$contains 2 electrons, the second shell$\left(\mathrm{L}\right)$ contains 8 electrons and the third shell$\left(\mathrm{M}\right)$ contains 7 electrons.

Part 2: Electron dot structure of chlorine

• Since the outermost shell that is $\mathrm{M}$ shell contains 7 valence electrons, hence valency of Chlorine is $1$
• As we know according to the octet rule, Chlorine needs 1 more electron to complete its outermost shell and become stable.
• Thus it combines with another chlorine atom by sharing 1 electron each to complete their octet state.

• The crosses represent the valence electrons present in the outermost shell.