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% Document Info
\author{Purvanshee (purvanshee)}
\pdfinfo{
  /Title (structure-of-atoms.pdf)
  /Creator (Cheatography)
  /Author (Purvanshee (purvanshee))
  /Subject (structure of atoms Cheat Sheet)
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\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
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    \vspace{-7pt}
    {\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{structure of atoms Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Purvanshee (purvanshee)} via \textcolor{DarkBackground}{\uline{cheatography.com/157315/cs/39632/}}}
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\noindent
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Purvanshee (purvanshee) \\
  \uline{cheatography.com/purvanshee} \\
  \end{tabulary}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 21st July, 2023.\\
   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{multicols*}{3}

\begin{tabularx}{5.377cm}{X}
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{DISOVERY OF SUB ATOMIC PARTICLES}}  \tn
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{DISCOVERY OF ELECTRON}}  \tn
% Row 0
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\mymulticolumn{1}{x{5.377cm}}{{\bf{Michael Faraday}} in {\bf{1850s}} used {\bf{Cathode Ray discharge tube }} to study electrical discharge} \tn 
% Row Count 2 (+ 2)
% Row 1
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\mymulticolumn{1}{x{5.377cm}}{Between electrodes {\bf{voltage }} applied -{\bf{10000V}}} \tn 
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% Row 2
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\mymulticolumn{1}{x{5.377cm}}{{\bf{Pressure reduced}}- {\bf{10\textasciicircum{}-4\textasciicircum{}atm/(0.01mm)}}} \tn 
% Row Count 5 (+ 1)
% Row 3
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\mymulticolumn{1}{x{5.377cm}}{Phosphorescent Material like {\bf{zinc sulphide}} used on glass wall behind anode to observe the emitted rays from cathode} \tn 
% Row Count 8 (+ 3)
% Row 4
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\mymulticolumn{1}{x{5.377cm}}{when a perforated anode is used glow between electrode disappears but current continues to flow a {\bf{faint greenish}} glow is observed on the glass wall due to the rays {\bf{emitted by cathode}} which {\bf{pass through the holes of anode}}.} \tn 
% Row Count 13 (+ 5)
% Row 5
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\mymulticolumn{1}{x{5.377cm}}{these rays are called {\bf{Cathode rays}} due to their origin.} \tn 
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Characteristics of Cathode Rays}}  \tn
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\mymulticolumn{1}{x{5.377cm}}{they travel in a straight line} \tn 
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% Row 1
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\mymulticolumn{1}{x{5.377cm}}{they consist of material particles as they show mechanical effects} \tn 
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% Row 2
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\mymulticolumn{1}{x{5.377cm}}{they consist of electrons} \tn 
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% Row 3
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\mymulticolumn{1}{x{5.377cm}}{they show heating effect} \tn 
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% Row 4
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\mymulticolumn{1}{x{5.377cm}}{they produce x rays} \tn 
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% Row 5
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\mymulticolumn{1}{x{5.377cm}}{they cause ionization of gas through which they pass} \tn 
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% Row 6
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\mymulticolumn{1}{x{5.377cm}}{they affect the photographic plates} \tn 
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% Row 7
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\mymulticolumn{1}{x{5.377cm}}{they posses penetrating effect} \tn 
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\mymulticolumn{1}{x{5.377cm}}{These characteristics were concluded as a result of various experiments performed by{\bf{JJ Thomson(1897)}} and others.}  \tn 
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\begin{tabularx}{5.377cm}{x{1.55618 cm} x{1.51041 cm} x{1.51041 cm} }
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\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{CHARGE AND MASS OF ELECTRON}}  \tn
% Row 0
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{\bf{CHARGE TO MASS RATIO}} & **CHARGE ON THE ELECTRON: Milikan's Oil Drop Exp. & {\bf{ MASS OF THE ELECTRON}} \tn 
% Row Count 4 (+ 4)
% Row 1
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By measuring the amount of deflections the {\bf{electric field strength}} or {\bf{magnetic field strength}} {\bf{Thomson}} calculated the value of the ratio & \seqsplit{https://images}.app.goo.gl/4ZMyZPJaNWaDpHgn6 & Mass can be calculated from the values of e/m`e` and e \tn 
% Row Count 16 (+ 12)
% Row 2
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{\bf{e/m`e`=1.758820x10\textasciicircum{}11\textasciicircum{}Ckg\textasciicircum{}-1\textasciicircum{}}} & Using an atomiser small drops of oil are allowed to fall between 2 electrically charged plates & \seqsplit{m`e`=e/e/m`e`=1}.6022x 10\textasciicircum{}-19\textasciicircum{}C/1.758820X 10\textasciicircum{}11\textasciicircum{}C kg\textasciicircum{}-1\textasciicircum{} \tn 
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% Row 3
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 & Milikan observed the rate of their fall as to measure mass of these droplets & {\bf{m`e`=9.1094x 10\textasciicircum{}-31\textasciicircum{}kg}} \tn 
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\begin{tabularx}{5.377cm}{x{1.55618 cm} x{1.51041 cm} x{1.51041 cm} }
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\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{CHARGE AND MASS OF ELECTRON (cont)}}  \tn
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 & Using x-ray he ionised the gas inside the chamber & the mass 9.11x 10\textasciicircum{}-28\textasciicircum{} g is nearly 1/1837\textasciicircum{}th\textasciicircum{} of the hydrogen atom \tn 
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% Row 5
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 & because of the collisions with gaseous ions their droplets now had electrical charge on them. &  \tn 
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% Row 6
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 & By observing the effects of electrical field strength on the motion of oil droplets milk and concluded that {\bf{the magnitude of electrical charge q, on the droplets is always an integral multiple of the electrical charge, e.}} &  \tn 
% Row Count 32 (+ 18)
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\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{CHARGE AND MASS OF ELECTRON (cont)}}  \tn
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 & I.e. {\bf{q=ne}} where n= integer sub as 1,2,3... &  \tn 
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% Row 8
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 & the value of this charge is {\bf{-1.6022x10\textasciicircum{}-19\textasciicircum{}}}or {\bf{4.8x10\textasciicircum{}-10\textasciicircum{}esu}} &  \tn 
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% Row 9
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 & esu is the smallest measurable quantity of charge and is called one unit. &  \tn 
% Row Count 16 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
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\par\addvspace{1.3em}


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

\end{document}