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% Most of the following are not required for the majority
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% Document Info
\author{STEMhighschool}
\pdfinfo{
  /Title (ap-bio-chemistry-of-life.pdf)
  /Creator (Cheatography)
  /Author (STEMhighschool)
  /Subject (AP Bio Chemistry of life Cheat Sheet)
}

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% Commands
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% Header and Footer
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\noindent
\begin{multicols}{3}
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    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{AP Bio Chemistry of life Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{STEMhighschool} via \textcolor{DarkBackground}{\uline{cheatography.com/121412/cs/22213/}}}
\end{tabulary}
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\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}STEMhighschool \\
  \uline{cheatography.com/stemhighschool} \\
  \end{tabulary}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 30th March, 2020.\\
   Updated 30th March, 2020.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\begin{document}
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% 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*}{2}

\begin{tabularx}{8.4cm}{x{4.08 cm} x{3.92 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Basics}}  \tn
% Row 0
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Everything is made up of matter & Only 25 elements are essential for life \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Matter is made up of atoms & 96\% of living matter is N,H,C,O \tn 
% Row Count 5 (+ 2)
% Row 2
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Atoms consist of protons, Neutrons, and Electrons & 4\% of living matter is Ca,K,S,P \tn 
% Row Count 8 (+ 3)
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Bonding Properties}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Electron Effects-} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{determine chemical behavior of atom} \tn 
% Row Count 2 (+ 1)
% Row 2
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\mymulticolumn{1}{x{8.4cm}}{depends on the \# of the electrons in the outermost shell called the "valance electrons" \& "Valance shell"} \tn 
% Row Count 5 (+ 3)
% Row 3
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\mymulticolumn{1}{x{8.4cm}}{atoms want a complete octate (8 valance electrons) except for hydrogen (wants 4)} \tn 
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Chemical Reactivity}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Atoms tend to complete a partially filled valance shell or empty a partially filled valance shell.} \tn 
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% Row 1
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\mymulticolumn{1}{x{8.4cm}}{This drives reactions \& completes bonds} \tn 
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\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Bonds in chemistry}}  \tn
% Row 0
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Strong Bonds & Weak Bonds \tn 
% Row Count 1 (+ 1)
% Row 1
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Covalent Bond -\textgreater{} share electrons evenly & Hydrogen Bond -\textgreater{} attraction between + and - \tn 
% Row Count 4 (+ 3)
% Row 2
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 & Ionic \tn 
% Row Count 5 (+ 1)
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\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
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\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Covalent Bonds}}  \tn
% Row 0
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Why are covalent bonds so strong? & Multiple covalent bonds \tn 
% Row Count 2 (+ 2)
% Row 1
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* 2 atoms share a pair of electrons & * Double Bonds ex: O2 \tn 
% Row Count 4 (+ 2)
% Row 2
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* both atoms are holding on & * 2 Pairs of electrons \tn 
% Row Count 6 (+ 2)
% Row 3
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* Very stable & * Triple bonds ex: N2 (very strong) \tn 
% Row Count 8 (+ 2)
% Row 4
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* Forms Molecules ex: H2O & * 3 pairs of electrons \tn 
% Row Count 10 (+ 2)
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\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
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\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Polar vs Non Polar Covalent Bonds}}  \tn
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Polar Covalent & Non-Polar Covalent \tn 
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% Row 1
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No areas of + or - because electrons are shared evenly & Electrons are shared unequally by atoms \tn 
% Row Count 4 (+ 3)
% Row 2
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Ex: Hydrocarbons (Methane CH4) & Ex: (H2O) -\textgreater{} O is more - and pulls electrons away from the H  making O have a - charge. \tn 
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% Row 3
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% That's all folks
\end{multicols*}

\end{document}