Vanh5am5iraayalamoes Vanh5am5iraayalamoes

19-02-2017
Chemistry

contestada

What is the mass number of a uranium isotope that has 92 protons and 143 neutrons?

Respuesta :

ebenca4 ebenca4

23-02-2017

mass number = proton number+ neutron number
m=92+143
=235

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