【 3 Steps】How Many Neutrons Does Xenon (Xe) Have?|| Number of Neutrons in Xenon(Xe))

How Many Neutrons Does 

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Xenon (Xe) Have?

Hello, chemistry lover! today I am going to help you to find out how many neutrons xenon(Xe) have in just 3 steps.

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Descriptio

To find out the number of neutrons  for  xenon(Xe),we have to have knowledge about atomic number,atomic mass,mass number of  xenon(Xe)

.Click picture to see clearly.

                    Step-1:

●The atomic number of    is the number of protons in xenon(Xe)'s nucleus.

●The atomic mass of  xenon(Xe)   is the average number of  protons plus neutrons of all the isotopes of   xenon(Xe) .


●The masss number of  xenon(Xe)  is the number of protons plus neutrons of a specific isotope of  xenon(Xe)   .

                    Step-2:

We need to convert atomic mass of  xenon(Xe)  to mass number of  xenon(Xe) by rounding if necessary (In case of fraction) .

From periodic table,

  ●Atomic number of  xenon(Xe) is 54.

●Atomic mass of  xenon(Xe) is 131.3

●To find out mass number,we need to round 131.3 to a whole number.

So,by rounding,we are getting the mass number of xenon(Xe).The mass number of xenon(Xe) (we are getting) is 131.

                    Step-3:

By the difference between mass number and atomic
number of xenon(Xe),we get the number of neutrons in xenon(Xe).


●Number of neutrons=131-54=77

In another way,

●Mass number=Protons +Neutrons

Or,131 =54+Neutrons

Or,131-54=Neutrons

Therefore,

Neutrons=77

Therefore,the number of neutrons in xenon(Xe) is 77 here for this isotope.Remember that neutrons are present in the nucleous of xenon(Xe) and it's charge is zero.

●Number of protons in xenon(Xe) is 54.Protons are present in the nucleus of xenon(Xe) .

● Number of electrons in xenon(Xe)  is 54.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of xenon(Xe)  .

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