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% Document Info
\author{Monica Yeom (MonicaYeom)}
\pdfinfo{
  /Title (chemistry-unit-1.pdf)
  /Creator (Cheatography)
  /Author (Monica Yeom (MonicaYeom))
  /Subject (Chemistry Unit 1 Cheat Sheet)
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        \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{Chemistry Unit 1 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Monica Yeom (MonicaYeom)} via \textcolor{DarkBackground}{\uline{cheatography.com/121371/cs/22192/}}}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Monica Yeom (MonicaYeom) \\
  \uline{cheatography.com/monicayeom} \\
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 28th March, 2020.\\
   Updated 28th March, 2020.\\
   Page {\thepage} of \pageref{LastPage}.
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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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\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Empedocles (500 B.C)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{All matter is made up of {\bf{water}}, {\bf{earth}}, {\bf{air}} \& {\bf{fire}}} \tn 
% Row Count 2 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Democritus (300 B.C)}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Known as {\emph{The Laughing Philosopher}}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Atoms are {\bf{indivisible}}, {\bf{indestructible}}, {\bf{in motion}} \& {\bf{differs in shapes and sizes}}} \tn 
% Row Count 3 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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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}{John Dalton (Early 1800s)}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Billiard Ball Model / Solid Sphere Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Atoms can't be {\bf{destroyed}}, {\bf{subdivided}} or {\bf{created}}} \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Atoms of the same element have {\bf{identical properties}}; Atoms from different elements have {\bf{different properties}}} \tn 
% Row Count 6 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{During chemical reactions, atoms can be {\bf{rearranged}}, {\bf{separated}} or {\bf{created}}} \tn 
% Row Count 8 (+ 2)
% Row 4
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\mymulticolumn{1}{x{8.4cm}}{Atoms are combined in {\bf{simple whole number ratios}}} \tn 
% Row Count 10 (+ 2)
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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}{J.J Thompson (Late 1800s)}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Plum Pudding Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Discovered that {\bf{electrons}} are stuck in a {\bf{positively charged matter}}} \tn 
% Row Count 3 (+ 2)
% Row 2
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\mymulticolumn{1}{x{8.4cm}}{Conducted the {\bf{cathode-ray experiment}}; Beta particles were attracted to the positively charged magnets} \tn 
% Row Count 6 (+ 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}{Ernest Rutherford (1911)}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Nuclear Model / Rutherford's Model} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{{\bf{Dense}}, {\bf{tiny positively charge}} in the centre of an atom} \tn 
% Row Count 3 (+ 2)
% Row 2
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\mymulticolumn{1}{x{8.4cm}}{Several {\bf{spaces}} in an atom} \tn 
% Row Count 4 (+ 1)
% Row 3
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\mymulticolumn{1}{x{8.4cm}}{Most of the {\bf{mass}} is in the nucleus} \tn 
% Row Count 5 (+ 1)
% Row 4
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\mymulticolumn{1}{x{8.4cm}}{If J.J Thompson's discovery was accurate, the particles would've had {\bf{minor deflects}}, but there were {\bf{major deflects}}} \tn 
% Row Count 8 (+ 3)
% Row 5
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\mymulticolumn{1}{x{8.4cm}}{{\bf{Gold foil}} was used b/c it is the most {\bf{malleable}} metal} \tn 
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Niels Bohr (1913)}}  \tn
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\mymulticolumn{1}{x{8.4cm}}{Planetary Model / Bohr's Model} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{Electrons emit {\bf{photons}} (quantum of light) jumps up or down to other shells and doesn't spiral into the nucleus while emitting {\bf{photons}}} \tn 
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Max Planck}}  \tn
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\mymulticolumn{1}{x{8.4cm}}{Proposed that particles can emit a certain amount of {\bf{electromagnetic radiation}}} \tn 
% Row Count 2 (+ 2)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{Electrons need to obtain the amount of energy before emitting it} \tn 
% Row Count 4 (+ 2)
% Row 2
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\mymulticolumn{1}{x{8.4cm}}{Analogy: Similar to a bank machine...you can only receive multiple of \$20.00, although other amounts exit (e.g. \$32.00)} \tn 
% Row Count 7 (+ 3)
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\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Werner Heisenberg's Uncertainty Principle}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{It's impossible to know both the {\bf{position}} (location) \& the {\bf{momentum}} (speed) of a particle at any given moment} \tn 
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Erwin Schrodinger (1926)}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Quantum Mechanical Model} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{Mathematically predicted the {\bf{regions of space}} where electrons can be found} \tn 
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\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{De Broglie}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{Quantum Mechanical Model} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{Electrons behave like {\bf{waves}} \& {\bf{particles}}} \tn 
% Row Count 2 (+ 1)
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\par\addvspace{1.3em}


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

\end{document}