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Untuk atom hidrogen pada orbit Bohr n = 2, tentukan jari-jari orbit!

Pertanyaan

Untuk atom hidrogen pada orbit Bohr n = 2, tentukan jari-jari orbit! begin mathsize 14px style blank to the power of blank end style

  1. ... begin mathsize 14px style blank to the power of blank end style

  2. ... begin mathsize 14px style blank to the power of blank end style

Pembahasan Video:

Pembahasan Soal:

begin mathsize 14px style e equals 4 comma 803 cross times 10 to the power of negative 10 end exponent space gr to the power of bevelled 1 half end exponent cm to the power of bevelled 3 over 2 end exponent straight s to the power of negative 1 end exponent m subscript e equals 9 comma 1 cross times 10 to the power of negative 28 end exponent space gr h equals 6 comma 626 cross times 10 to the power of negative 27 end exponent space gr space cm squared space straight s to the power of negative 2 end exponent end style  

Ditanya: r = ...

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row r equals cell fraction numerator h squared over denominator 4 straight pi squared straight e squared straight m subscript straight e end fraction n squared end cell row blank equals cell fraction numerator open parentheses 6 comma 626 cross times 10 to the power of negative 27 end exponent close parentheses squared over denominator 4 open parentheses 3 comma 14 close parentheses squared open parentheses 4 comma 803 cross times 10 to the power of negative 10 end exponent close parentheses squared open parentheses 9 comma 106 cross times 10 to the power of negative 28 end exponent close parentheses end fraction open parentheses 2 close parentheses squared end cell row blank equals cell open parentheses 0 comma 0053 cross times 10 to the power of negative 6 end exponent close parentheses open parentheses 4 close parentheses end cell row blank equals cell open parentheses 5 comma 3 cross times 10 to the power of negative 9 end exponent close parentheses open parentheses 4 close parentheses end cell row blank equals cell 21 comma 2 cross times 10 to the power of negative 9 end exponent space cm end cell row blank equals cell 2 comma 12 space straight A end cell end table end style 

Jadi,  jari-jari orbit adalah 2,12 A

 

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 12 April 2021

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