This 4 step process for writing Lewis dot structures involves: 1) arranging atoms with the central atom having lower electronegativity, 2) adding up valence electrons and accounting for any charges, 3) drawing single bonds between atoms and removing 2 electrons for each, and 4) distributing any remaining electrons in pairs to satisfy the octet rule and complete the structure.

1. 4 Step Process: Drawing Lewis Dot Structures
Steps for writing Lewis structures:
Key considerations:
 The octet rule
 An atom’s tendency to attract other electrons (electronegativity).
Step 1: Arrange atoms
 Find the central atom and place remaining atoms around it.
 The central atom is generally the atom with the lower
electronegativity (EN).
Step 2: Add up valence electrons of all the atoms
 If the molecule has a negative charge add additional electrons, (i.e.
-1 charge = 1 added electron; -2 charge – 2 added electrons)
 If the molecule has a positive charge subtract electrons, (i.e. +1
charge = 1 added electron; +2 = 2 added electrons)
Step 3: Draw single bonds
 Draw a single bond between central atom and surrounding atoms.
 For each single bond subtract 2 electrons from the total number of
valence electrons (from step 2)
Step 4: Deal out remaining electrons.
 Distribute remaining electrons in pairs’
 Start with the atom with the largest electronegativity
 Ensure the octet rule is satisfied
 Any remaining atoms are placed around the central atom.