susShekhbunnn
susShekhbunnn susShekhbunnn
  • 23-05-2016
  • Biology
contestada

How many neutrons does element X have if its atomic number is 58 and its mass number is 163

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taskmasters
taskmasters taskmasters
  • 23-05-2016
Number of neutron = mass number - atomic number
                               = 163 - 58

Number of neutrons of element X is 105.
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