Question

write about lewis dot structure ?

Answer 1

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Lewis structures, also known as Lewis dot diagrams, Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.[1][2][3] A Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. The Lewis structure was named after Gilbert N. Lewis, who introduced it in his 1916 article The Atom and the Molecule.[4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.

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Answer 2

Answer:

(1) Count the number of valence electrons in each combining atoms in the molecule.

(2) Write the skeletal structure of the molecule indicating valence electrons in each atom and formation of a single bond between the atoms.

(3) If octet is not complete then form multiple bonds between the atoms so that octet of each bonding atom is complete.

(4) In anions add extra electron for each negative charge.

(5) In cations show deficiency of one electron per unit positive charge.

(6) In polyatomic molecules or ions, the electronegative atoms are flanked around least electronegative atom.