{"id":7846,"date":"2023-03-04T12:08:19","date_gmt":"2023-03-04T12:08:19","guid":{"rendered":"https:\/\/www.goodacademic.com\/blog\/questions\/periodic-table\/"},"modified":"2023-03-04T12:08:19","modified_gmt":"2023-03-04T12:08:19","slug":"periodic-table","status":"publish","type":"questions","link":"https:\/\/www.goodacademic.com\/blog\/questions\/periodic-table\/","title":{"rendered":"periodic table"},"content":{"rendered":"<div class=\"col-sm-12 messageContent\">\n <b>Learning Goal: <\/b>I&#8217;m working on a html \/ css project and need a reference to help me learn.<\/p>\n<p>&lt;!DOCTYPE html&gt;<\/p>\n<p>&lt;html lang=&#8221;en&#8221;&gt;<\/p>\n<p>&lt;head&gt;<\/p>\n<p>&lt;title&gt;Periodic Table&lt;\/title&gt;<\/p>\n<p>&lt;\/head&gt;<\/p>\n<p>&lt;body&gt;<\/p>\n<p>&lt;center&gt;<\/p>\n<p>&lt;h1 bgcolor=&#8221;pink&#8221;&gt;PERIODIC TABLE&lt;\/h1&gt;<\/p>\n<p>&lt;hr\/&gt;<\/p>\n<p>&lt;!&#8211;It contains elements of first period of periodic table&#8211;&gt;<\/p>\n<p>&lt;table border=&#8221;2&#8243; width=&#8221;10&#8243; cellpadding=&#8221;2&#8243; cellspacing=&#8221;2&#8243;&gt;<\/p>\n<p>&lt;tr&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Hydrogen&#8221;&gt;&lt;sup&gt;1&lt;\/sup&gt;H&lt;\/td&gt;<\/p>\n<p>&lt;td colspan=&#8221;16&#8243;&gt;&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fdfdfd&#8221; title=&#8221;Helium&#8221;&gt;&lt;sup&gt;2&lt;\/sup&gt;He&lt;\/td&gt;<\/p>\n<p>&lt;\/tr&gt;<\/p>\n<\/p>\n<p>&lt;!&#8211;It contains elements of second period of periodic table&#8211;&gt;<\/p>\n<p>&lt;tr&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fbcd76&#8243; title=&#8221;Lithium&#8221;&gt;&lt;sup&gt;3&lt;\/sup&gt;Li&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffcc85&#8243; title=&#8221;Beryllium&#8221;&gt;&lt;sup&gt;4&lt;\/sup&gt;Be&lt;\/td&gt;<\/p>\n<p>&lt;td colspan=&#8221;10&#8243;&gt;&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Boron&#8221;&gt;&lt;sup&gt;5&lt;\/sup&gt;B&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Carbon&#8221;&gt;&lt;sup&gt;6&lt;\/sup&gt;C&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Nitrogen&#8221;&gt;&lt;sup&gt;7&lt;\/sup&gt;N&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Oxygen&#8221;&gt;&lt;sup&gt;8&lt;\/sup&gt;O&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#a3d7a6&#8243; title=&#8221;Fluorine&#8221;&gt;&lt;sup&gt;9&lt;\/sup&gt;F&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fdfdfd&#8221; title=&#8221;Neon&#8221;&gt;&lt;sup&gt;10&lt;\/sup&gt;Ne&lt;\/td&gt;<\/p>\n<p>&lt;\/tr&gt;<\/p>\n<\/p>\n<p>&lt;!&#8211;It contains elements of third period of periodic table&#8211;&gt;<\/p>\n<\/p>\n<p>&lt;tr&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fbcd76&#8243; title=&#8221;Sodium&#8221;&gt;&lt;sup&gt;11&lt;\/sup&gt;Na&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffcc85&#8243; title=&#8221;Magnesium&#8221;&gt;&lt;sup&gt;12&lt;\/sup&gt;Mg&lt;\/td&gt;<\/p>\n<p>&lt;td colspan=&#8221;10&#8243;&gt;&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243;Aluminium&#8221;&gt;&lt;sup&gt;13&lt;\/sup&gt;Al&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Silicon&#8221;&gt;&lt;sup&gt;14&lt;\/sup&gt;Si&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Phosphorus&#8221;&gt;&lt;sup&gt;15&lt;\/sup&gt;P&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Sulfur&#8221;&gt;&lt;sup&gt;16&lt;\/sup&gt;S&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#a3d7a6&#8243; title=&#8221;Chlorine&#8221;&gt;&lt;sup&gt;17&lt;\/sup&gt;Cl&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fdfdfd&#8221; title=&#8221;Argon&#8221;&gt;&lt;sup&gt;18&lt;\/sup&gt;Ar&lt;\/td&gt;<\/p>\n<p>&lt;\/tr&gt;<\/p>\n<p><\/p>\n<p>&lt;!&#8211;It contains elements of fourth period of periodic table&#8211;&gt;<\/p>\n<\/p>\n<p>&lt;tr&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fbcd76&#8243; title=&#8221;Potassium&#8221;&gt;&lt;sup&gt;19&lt;\/sup&gt;K&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffcc85&#8243; title=&#8221;Calcium&#8221;&gt;&lt;sup&gt;20&lt;\/sup&gt;Ca&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#e5ee9b&#8221; title=&#8221;Scandium&#8221;&gt;&lt;sup&gt;21&lt;\/sup&gt;Sc&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Titanium&#8221;&gt;&lt;sup&gt;22&lt;\/sup&gt;Ti&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Vanadium&#8221;&gt;&lt;sup&gt;23&lt;\/sup&gt;V&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Chromium&#8221;&gt;&lt;sup&gt;24&lt;\/sup&gt;Cr&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Manganese&#8221;&gt;&lt;sup&gt;25&lt;\/sup&gt;Mn&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Iron&#8221;&gt;&lt;sup&gt;26&lt;\/sup&gt;Fe&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Cobalt&#8221;&gt;&lt;sup&gt;27&lt;\/sup&gt;Co&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Nickel&#8221;&gt;&lt;sup&gt;28&lt;\/sup&gt;Ni&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Copper&#8221;&gt;&lt;sup&gt;29&lt;\/sup&gt;Cu&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Zinc&#8221;&gt;&lt;sup&gt;30&lt;\/sup&gt;Zn&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Gallium&#8221;&gt;&lt;sup&gt;31&lt;\/sup&gt;Ga&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Germanium&#8221;&gt;&lt;sup&gt;32&lt;\/sup&gt;Ge&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Arsenic&#8221;&gt;&lt;sup&gt;33&lt;\/sup&gt;As&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Selenium&#8221;&gt;&lt;sup&gt;34&lt;\/sup&gt;Se&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#a3d7a6&#8243; title=&#8221;Bromine&#8221;&gt;&lt;sup&gt;35&lt;\/sup&gt;Br&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fdfdfd&#8221; title=&#8221;Krypton&#8221;&gt;&lt;sup&gt;36&lt;\/sup&gt;Kr&lt;\/td&gt;<\/p>\n<p>&lt;\/tr&gt;<\/p>\n<p><\/p>\n<p>&lt;!&#8211;It contains elements of fifth period of periodic table&#8211;&gt;<\/p>\n<\/p>\n<p>&lt;tr&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fbcd76&#8243; title=&#8221;Rubidium&#8221;&gt;&lt;sup&gt;37&lt;\/sup&gt;Rb&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffcc85&#8243; title=&#8221;Strontium&#8221;&gt;&lt;sup&gt;38&lt;\/sup&gt;Sr&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#e5ee9b&#8221; title=&#8221;Yttrium&#8221;&gt;&lt;sup&gt;39&lt;\/sup&gt;Y&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Zicronium&#8221;&gt;&lt;sup&gt;40&lt;\/sup&gt;Zr&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Niobium&#8221;&gt;&lt;sup&gt;41&lt;\/sup&gt;Nb&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Molybdenum&#8221;&gt;&lt;sup&gt;42&lt;\/sup&gt;Mo&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Technetium&#8221;&gt;&lt;sup&gt;43&lt;\/sup&gt;Tc&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Ruthenium&#8221;&gt;&lt;sup&gt;44&lt;\/sup&gt;Ru&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Rhodium&#8221;&gt;&lt;sup&gt;45&lt;\/sup&gt;Rh&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Palladium&#8221;&gt;&lt;sup&gt;46&lt;\/sup&gt;Pd&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Silver&#8221;&gt;&lt;sup&gt;47&lt;\/sup&gt;Ag&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Cadmium&#8221;&gt;&lt;sup&gt;48&lt;\/sup&gt;Cd&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Indium&#8221;&gt;&lt;sup&gt;49&lt;\/sup&gt;In&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Tin&#8221;&gt;&lt;sup&gt;50&lt;\/sup&gt;Sn&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Antimony&#8221;&gt;&lt;sup&gt;51&lt;\/sup&gt;Sb&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#feb094&#8243; title=&#8221;Tellurium&#8221;&gt;&lt;sup&gt;52&lt;\/sup&gt;Te&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#a3d7a6&#8243; title=&#8221;Iodine&#8221;&gt;&lt;sup&gt;53&lt;\/sup&gt;I&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fdfdfd&#8221; title=&#8221;Xenon&#8221;&gt;&lt;sup&gt;54&lt;\/sup&gt;Xe&lt;\/td&gt;<\/p>\n<p>&lt;\/tr&gt;<\/p>\n<\/p>\n<p>&lt;!&#8211;It contains elements of sixth period of periodic table&#8211;&gt;<\/p>\n<p>&lt;tr&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fbcd76&#8243; title=&#8221;Caesium&#8221;&gt;&lt;sup&gt;55&lt;\/sup&gt;Cs&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffcc85&#8243; title=&#8221;Barium&#8221;&gt;&lt;sup&gt;56&lt;\/sup&gt;Ba&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#e5ee9b&#8221; title=&#8221;Lanthan&#8221;&gt;&lt;sup&gt;57&lt;\/sup&gt;La&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Hafnium&#8221;&gt;&lt;sup&gt;72&lt;\/sup&gt;Hf&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Tantalum&#8221;&gt;&lt;sup&gt;73&lt;\/sup&gt;Ta&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Tungsten&#8221;&gt;&lt;sup&gt;74&lt;\/sup&gt;W&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Rhenium&#8221;&gt;&lt;sup&gt;75&lt;\/sup&gt;Re&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Osmium&#8221;&gt;&lt;sup&gt;76]&lt;\/sup&gt;Os&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Iridium&#8221;&gt;&lt;sup&gt;77&lt;\/sup&gt;Ir&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Platinum&#8221;&gt;&lt;sup&gt;78&lt;\/sup&gt;Pt&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Gold&#8221;&gt;&lt;sup&gt;79&lt;\/sup&gt;Au&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Mercury&#8221;&gt;&lt;sup&gt;80&lt;\/sup&gt;Hg&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Thallium&#8221;&gt;&lt;sup&gt;81&lt;\/sup&gt;Ti&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Lead&#8221;&gt;&lt;sup&gt;82&lt;\/sup&gt;Pb&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Bismuth&#8221;&gt;&lt;sup&gt;83&lt;\/sup&gt;Bi&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243;title=&#8221;Polonium&#8221;&gt;&lt;sup&gt;84&lt;\/sup&gt;Po&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#a3d7a6&#8243; title=&#8221;Astatine&#8221;&gt;&lt;sup&gt;85&lt;\/sup&gt;At&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fdfdfd&#8221; title=&#8221;Radon&#8221;&gt;&lt;sup&gt;86&lt;\/sup&gt;Rn&lt;\/td&gt;<\/p>\n<p>&lt;\/tr&gt;<\/p>\n<p><\/p>\n<p>&lt;!&#8211;It contains elements of seven period of periodic table&#8211;&gt;<\/p>\n<p>&lt;tr&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fbcd76&#8243; title=&#8221;Francium&#8221;&gt;&lt;sup&gt;87&lt;\/sup&gt;Fr&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffcc85&#8243; title=&#8221;Radium&#8221;&gt;&lt;sup&gt;88&lt;\/sup&gt;Ra&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#b1e6fe&#8221; title=&#8221;Actinium&#8221;&gt;&lt;sup&gt;89&lt;\/sup&gt;Ac&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Rutherfordium&#8221;&gt;&lt;sup&gt;104&lt;\/sup&gt;Rf&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Dubnium&#8221;&gt;&lt;sup&gt;105&lt;\/sup&gt;Db&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Seaborgium&#8221;&gt;&lt;sup&gt;106&lt;\/sup&gt;Sg&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Bohrium&#8221;&gt;&lt;sup&gt;107&lt;\/sup&gt;Bh&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Hassium&#8221;&gt;&lt;sup&gt;108&lt;\/sup&gt;Hs&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Meitnerium&#8221;&gt;&lt;sup&gt;109&lt;\/sup&gt;Mt&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Damstadtium&#8221;&gt;&lt;sup&gt;110&lt;\/sup&gt;Ds&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Roentgenium&#8221;&gt;&lt;sup&gt;111&lt;\/sup&gt;Rg&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#d3c5e3&#8243; title=&#8221;Copemicium&#8221;&gt;&lt;sup&gt;112&lt;\/sup&gt;Cn&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Nihonium&#8221;&gt;&lt;sup&gt;113&lt;\/sup&gt;Nh&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Flerovium&#8221;&gt;&lt;sup&gt;114&lt;\/sup&gt;Fl&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Mosoovium&#8221;&gt;&lt;sup&gt;115&lt;\/sup&gt;Mc&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#ffccd5&#8243; title=&#8221;Livemorium&#8221;&gt;&lt;sup&gt;116&lt;\/sup&gt;Lv&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#a3d7a6&#8243; title=&#8221;Tennessi&#8221;&gt;&lt;sup&gt;117&lt;\/sup&gt;Ts&lt;\/td&gt;<\/p>\n<p>&lt;td bgcolor=&#8221;#fdfdfd&#8221; title=&#8221;Oganes&#8221;&gt;&lt;sup&gt;118&lt;\/sup&gt;Og&lt;\/td&gt;<\/p>\n<p>&lt;\/tr&gt;<\/p>\n<p>&lt;\/table&gt;<\/p>\n<p>&lt;\/center&gt;<\/p>\n<p><\/p>\n<p>&lt;!&#8211;This table define the lanthanoid and actinoid series&#8211;&gt;<\/p>\n<p>&lt;center&gt;<\/p>\n<p>&lt;h3 align=&#8221;left&#8221; 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