What is 77 (number)?
{{Infobox number}} '''77''' is a [[natural number]] that comes after [[76 (number)|76]] and before [[78 (number)|78]]. It is a [[Palindrome|palindromic]] number. ==Science== In science, 77 is: *The [[atomic number]] of [[iridium]]<ref>{{cite web |url= http://education.jlab.org/itselemental/ele077.html |title=It's Elemental - The Element Iridium |work=education.jlab.org |year=2015|access-date=24 August 2015}}</ref> *The boiling point of [[nitrogen]], in [[kelvin]]s<ref>{{cite web |url= http://education.jlab.org/itselemental/ele007.html |title=It's Elemental - The Element Nitrogen |work=education.jlab.org |year=2015 |access-date=24 August 2015}}</ref> ==References== {{reflist}} {{Math-stub}} [[Category:integers]]