Write Lewis structures for these compounds. Show all valence electrons. None of them contains a ring of atoms.
(a) Hydrogen peroxide, H2O2 (b) Hydrazine, N2H4 (c) Methanol, CH3OH
Lewis Dot Structures Rules
Calculate the total number of valence electrons in a molecule (group number = number of valence electrons)
Draw our your molecule and put lines between atoms (bonds)
Subtract electrons used in bonds (2 electrons per bond) from the total number of valence electrons
Use the remaining electrons to make outer atoms happy (octet). Keep in mind hydrogen only wants 2 electrons If there are any electrons left, place them on the central atom.
Check if everyone is happy(octet). If not use double and triple bonds.
Are you looking for an online general or organic chemistry tutor? Text 646-407-9078
We also have incredible physics, MCAT, biology, physical chemistry and calculus tutors!