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

How Many Neutrons Does 

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Antimony (Sb) Have?



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


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Descriptio







To find out the number of neutrons  for  antimony(Sb) ,we have to have knowledge about atomic number,atomic mass,mass number of  antimony(Sb)
.Click picture to see clearly.



                    Step-1:


●The atomic number of  antimony(Sb)  is the number of protons in antimony(Sb) nucleus.


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


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



How Many Neutrons Does antimony(Sb) Have?




                    Step-2:

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





From periodic table,


  ●Atomic number of  antimony(Sb) is 51.

●Atomic mass of  antimony(Sb) is 121.8

●To find out mass number,we need to round 121.8 to a whole number.

So,by rounding,we are getting the  mass number of antimony(Sb).The mass number of antimony(Sb) (we are getting) is 122.




                    Step-3:

How Many Neutrons Does antimony(Sb) Have?

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


●Number of neutrons=122-51=71

In another way,

●Mass number=Protons +Neutrons

Or,122 =51+Neutrons

Or,122-51=Neutrons

Therefore,
Neutrons=71





Therefore,the number of neutrons in antimony(Sb) is 71 here for this isotope.Remember that neutrons are present in the nucleous of antimony(Sb) and it's charge is zero.

●Number of protons in antimony(Sb) is 51.Protons are present in the nucleus of antimony(Sb) .





● Number of electrons in antimony(Sb)  is 51.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of antimony(Sb)  .


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