Respuesta :

arleniperez130
145 since it’s the mass number plus protons I think

The number of neutrons of [tex]^{239}Pu[/tex] is 145 .

Calculation,

The Mass number  of [tex]Pu[/tex] is 239 amu.

Mass number = Number of electron / number of proton

Atomic number of [tex]Pu[/tex] = 92 amu

Mass number = Number of neutron + number of proton

Number of neutron =  Mass number-  number of proton = 239 - 92 = 145

What is mass number?

  • The sum of proton/ electron and number of neutron in atomic nucleus is called mass number.
  • It is also called atomic mass number or nucleon number.

learn more about mass number,

https://brainly.com/question/4408975

#SPJ2

Otras preguntas