\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{mjb}
\pdfinfo{
  /Title (hybridization-and-mo-theory.pdf)
  /Creator (Cheatography)
  /Author (mjb)
  /Subject (Hybridization and MO Theory Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Hybridization and MO Theory Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{mjb} via \textcolor{DarkBackground}{\uline{cheatography.com/128288/cs/25147/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}mjb \\
  \uline{cheatography.com/mjb} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 9th November, 2020.\\
   Updated 9th November, 2020.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Hybridization}}  \tn
% Row 0
\SetRowColor{LightBackground}
Formal Charge & FC = (group \#) - (loan pairs + bonds) \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Bond Enthalpy & ΔHrxn = (sum of bonds broken) - (sum of bonds formed) \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
 & Weaker bonds broken provide more exothermic reactions. Weaker product bonds make for a less exothermic reaction. \tn 
% Row Count 10 (+ 5)
% Row 3
\SetRowColor{white}
Bond Order and Length & Shorter bond length = greater bond order \tn 
% Row Count 12 (+ 2)
% Row 4
\SetRowColor{LightBackground}
 & Single bonds are the longest and the weakest \tn 
% Row Count 14 (+ 2)
% Row 5
\SetRowColor{white}
 & Triple bonds are the shortest and the strongest \tn 
% Row Count 16 (+ 2)
% Row 6
\SetRowColor{LightBackground}
 & Non-integer bond order indicates resonance \tn 
% Row Count 18 (+ 2)
% Row 7
\SetRowColor{white}
Non-polar covalent bonds & ex: Cl-Cl \tn 
% Row Count 20 (+ 2)
% Row 8
\SetRowColor{LightBackground}
 & small energy difference in electronegativity \tn 
% Row Count 22 (+ 2)
% Row 9
\SetRowColor{white}
Polar Covalent Bonds & ex: H-Cl \tn 
% Row Count 24 (+ 2)
% Row 10
\SetRowColor{LightBackground}
 & medium energy difference \tn 
% Row Count 25 (+ 1)
% Row 11
\SetRowColor{white}
Ionic Bonds & ex: Li-Cl \tn 
% Row Count 26 (+ 1)
% Row 12
\SetRowColor{LightBackground}
 & large energy difference (over 1.7) \tn 
% Row Count 28 (+ 2)
% Row 13
\SetRowColor{white}
Average Bond Order & ABO = (\# of bonds in the molecule) ÷ (\# of resonance structures) \tn 
% Row Count 31 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{MO Theory}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/mjb_1604963389_FONEMO.jpg}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{MO diagram for F2, O2, Ne2, and all other molecules}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.44333 cm} x{3.53367 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{MO Theory}}  \tn
% Row 0
\SetRowColor{LightBackground}
Bond Order & (bonds-antibonds) ÷ 2 \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
Bonds & σ, π \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Anti-Bonds & σ{\emph{, π}} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
Sigma Bond & hybridized \textbackslash{} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Pi Bond & unhybridized p orbital \textbackslash{} \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
Loan Pair & Spin Paired \textbackslash{} -{}-\textgreater{} X \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.04425 cm} x{1.08602 cm} x{0.96071 cm} x{1.08602 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{VSEPR}}  \tn
% Row 0
\SetRowColor{LightBackground}
Number of Electrons & Electron Geometry & Atoms + Loan Pairs & Molecular Geometry \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
2 & linear & 2+0 & linear \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
3 & trigonal planar & 3+0 & trigonal planar \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
 &  & 2+1 & bent \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
4 & \seqsplit{tetrahedral} & 4+0 & \seqsplit{tetrahedral} \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
 &  & 3+1 & trigonal pyramidal \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
 &  & 2+2 & bent \tn 
% Row Count 11 (+ 1)
% Row 7
\SetRowColor{white}
5 & trigonal \seqsplit{bipyramidal} & 5+0 & trigonal \seqsplit{bipyramidal} \tn 
% Row Count 13 (+ 2)
% Row 8
\SetRowColor{LightBackground}
 &  & 4+1 & see-saw \tn 
% Row Count 14 (+ 1)
% Row 9
\SetRowColor{white}
 &  & 3+2 & T-shaped \tn 
% Row Count 15 (+ 1)
% Row 10
\SetRowColor{LightBackground}
 &  & 2+3 & linear \tn 
% Row Count 16 (+ 1)
% Row 11
\SetRowColor{white}
6 & \seqsplit{octahedral} & 6+0 & \seqsplit{octahedral} \tn 
% Row Count 17 (+ 1)
% Row 12
\SetRowColor{LightBackground}
 &  & 5+1 & square pyramidal \tn 
% Row Count 19 (+ 2)
% Row 13
\SetRowColor{white}
 &  & 4+2 & square planar \tn 
% Row Count 21 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.23965 cm} x{2.73735 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Polarity}}  \tn
% Row 0
\SetRowColor{LightBackground}
Requirements for a Polar Molecule & Bonds must be polar \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
 & The molecule cannot have symmetry \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
 & A bond is polar if one side is more electronegative than the other \tn 
% Row Count 7 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{MO Theory}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/mjb_1604963506_BCNpiMO.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Diagram for B2, C2, and N2}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.60195 cm} x{2.38004 cm} p{0.59501 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{The Born-Haber Cycle}}  \tn
% Row 0
\SetRowColor{LightBackground}
Sublimation & Na (s) + 1/2 Cl2 (g) -{}-\textgreater{} Na (g) + Cl (g) & \seqsplit{+107.32} kJ \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Cl-Cl bond energy & Na (g) + Cl (g) -{}-\textgreater{} Na (g) + 1/2 Cl2 (g) & \seqsplit{+121.68} kJ \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
ionization energy of sodium & Na (g) + 1/2 Cl2 (g) -{}-\textgreater{} Na+(g) + Cl (g) + e- & +496 kJ \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
Electron Affinity of Cl & Na+(g) + Cl (g) + e- -{}-\textgreater{} Na+ (g) + Cl- (g) & -349 kJ \tn 
% Row Count 10 (+ 3)
% Row 4
\SetRowColor{LightBackground}
Lattice Energy of NaCl & Na+ (g) + Cl- (g) -{}-\textgreater{} NaCl (s) & -786 kJ \tn 
% Row Count 12 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.32733 cm} x{2.47158 cm} p{0.77809 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Sigma and Pi Bonds}}  \tn
% Row 0
\SetRowColor{LightBackground}
Valence Bond Theory & When two atoms are in close proximity to one another, they arrange themselves at the lowest possible energy &  \tn 
% Row Count 6 (+ 6)
% Row 1
\SetRowColor{white}
Sigma bonds & Formed by end-on overlap of orbitals along the internuclear axis &  \tn 
% Row Count 10 (+ 4)
% Row 2
\SetRowColor{LightBackground}
 & the electron density is highest right between the two atoms &  \tn 
% Row Count 13 (+ 3)
% Row 3
\SetRowColor{white}
Pi bonds & Formed by side on overlap of orbitals &  \tn 
% Row Count 15 (+ 2)
% Row 4
\SetRowColor{LightBackground}
 & there is no electron density between the atoms &  \tn 
% Row Count 18 (+ 3)
% Row 5
\SetRowColor{white}
 & Weaker than sigma bonds &  \tn 
% Row Count 20 (+ 2)
% Row 6
\SetRowColor{LightBackground}
Valence electron pairs & Electron Geometry & \seqsplit{Hybridization} \tn 
% Row Count 23 (+ 3)
% Row 7
\SetRowColor{white}
2 & linear & sp \tn 
% Row Count 24 (+ 1)
% Row 8
\SetRowColor{LightBackground}
3 & trigonal planar & sp2 \tn 
% Row Count 25 (+ 1)
% Row 9
\SetRowColor{white}
4 & tetrahedral & sp3 \tn 
% Row Count 26 (+ 1)
% Row 10
\SetRowColor{LightBackground}
5 & trigonal bipyramidal & sp4 \tn 
% Row Count 27 (+ 1)
% Row 11
\SetRowColor{white}
6 & octahedral & sp5 \tn 
% Row Count 28 (+ 1)
% Row 12
\SetRowColor{LightBackground}
Single Bonds & one sigma bond &  \tn 
% Row Count 30 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{1.32733 cm} x{2.47158 cm} p{0.77809 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Sigma and Pi Bonds (cont)}}  \tn
% Row 13
\SetRowColor{LightBackground}
Double Bonds & one sigma, one pi bond &  \tn 
% Row Count 2 (+ 2)
% Row 14
\SetRowColor{white}
Triple Bonds & one sigma, two pi bonds &  \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}