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% Document Info
\author{Monica Yeom (MonicaYeom)}
\pdfinfo{
  /Title (atomic-theories.pdf)
  /Creator (Cheatography)
  /Author (Monica Yeom (MonicaYeom))
  /Subject (Atomic Theories Cheat Sheet)
}

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\noindent
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Atomic Theories Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Monica Yeom (MonicaYeom)} via \textcolor{DarkBackground}{\uline{cheatography.com/121371/cs/22194/}}}
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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}Not Yet Published.\\
   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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% www.emerson.emory.edu/services/latex/latex_169.html
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\begin{tabularx}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Empedocles (500 B.C)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{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}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Democritus (300 B.C)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{Solid Sphere Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{17.67cm}}{Atoms are {\bf{indivisible}}, {\bf{indestructible}}, {\bf{in motion}} \& {\bf{differs in shapes and sizes}}} \tn 
% Row Count 3 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{John Dalton (Early 1800s)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{Billiard Ball Model / Solid Sphere Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{17.67cm}}{Atoms can't be {\bf{destroyed}}, {\bf{subdivided}} or {\bf{created}}} \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{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{17.67cm}}{During chemical reactions, atoms can be {\bf{rearranged}}, {\bf{separated}} or {\bf{created}}} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{Atoms are combined in {\bf{simple whole number ratios}}} \tn 
% Row Count 10 (+ 2)
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\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{J.J Thompson (Late 1800s)}}  \tn
% Row 0
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\mymulticolumn{1}{x{17.67cm}}{Plum Pudding Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{17.67cm}}{Discovered that {\bf{electrons}} are stuck in a {\bf{positively charged matter}}} \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{Conducted the {\bf{cathode-ray experiment}}; Beta particles were attracted to the positively charged magnets} \tn 
% Row Count 6 (+ 3)
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\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Ernest Rutherford  (1911)}}  \tn
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\mymulticolumn{1}{x{17.67cm}}{Nuclear Model / Rutherford's Model} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{17.67cm}}{{\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{17.67cm}}{Several {\bf{spaces}} in an atom} \tn 
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% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{17.67cm}}{Most of the {\bf{mass}} is in the nucleus} \tn 
% Row Count 5 (+ 1)
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\begin{tabularx}{17.67cm}{X}
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Max Planck}}  \tn
% Row 0
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\mymulticolumn{1}{x{17.67cm}}{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{17.67cm}}{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{17.67cm}}{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}{17.67cm}{X}
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Niels Bohr (1913)}}  \tn
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\mymulticolumn{1}{x{17.67cm}}{Planetary Model / Bohr's Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{17.67cm}}{Electrons emit photons (small amount) of light that jumps up or down to other shells and doesn't spiral into the nucleus while emitting photons} \tn 
% Row Count 4 (+ 3)
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\begin{tabularx}{17.67cm}{X}
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Werner Heisenberg's Uncertainty Principle}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{It's impossible to know both the {\bf{position}} (location) \& the {\bf{momentum}} (speed) of a particle at any given moment} \tn 
% Row Count 3 (+ 3)
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\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Erwin Schrodinger (1926)}}  \tn
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\mymulticolumn{1}{x{17.67cm}}{Quantum Mechanical Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{17.67cm}}{Mathematically predicted the {\bf{regions of space}} where electrons can be found} \tn 
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\begin{tabularx}{17.67cm}{X}
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{De Broglie}}  \tn
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\mymulticolumn{1}{x{17.67cm}}{Quantum Mechanical Model} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{17.67cm}}{Electrons behave like {\bf{waves}} \& {\bf{particles}}} \tn 
% Row Count 2 (+ 1)
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\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Conundrum \#1}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{Electrons in motions should emit energy of a {\bf{continuous electromagnetic spectrum}} (rainbow). This loss of energy would cause electrons to spiral into the nucleus, destroying the atom. This wasn't demonstrated in {\bf{Rutherford's Model}}, so scientists were skeptical} \tn 
\mymulticolumn{1}{x{17.67cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}Electrons in motion doesn't emit a {\bf{continous electromagnetic spectrum}}, but a {\bf{line spectrum}} (series of separate lines of different colours of light emitted by atoms of a specific element as they lose quanta) instead. Additionally, once Niels Bohr proved how electrons move from shell to shell when quanta is emitted scientists understood why electrons emitting energy wouldn't crush the atom.} \tn 
% Row Count 15 (+ 15)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}



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