【 】How Many Neutrons Does Samarium (Sm) Have?||Number of Neutrons in Samarium(Sm)


How Many Neutrons Does Samarium (Sm) Have?


Answer:

Samarium has 88 neutrons for this isotope.

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Explanation:

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



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To find out the number of neutrons for samarium (Sm),we have to have knowledge about atomic number,atomic mass and mass number of samarium (Sm)


.Click picture to see clearly.



                    Step-1:


●The atomic number of  samarium (Sm)  is the number of protons in samarium (Sm)'s nucleus.


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


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



How Many Neutrons Does samarium (Sm) Have?




                    Step-2:

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





From periodic table,


  ●Atomic number of  samarium (Sm) is 62.

●Atomic mass of  samarium (Sm) is 150.4

●To find out mass number,we need to round 150.4 to a whole number.

So,by rounding,we are getting the mass number of samarium (Sm).The mass number of samarium (Sm) (we are getting) is 150.




                    Step-3:

How Many Neutrons Does samarium (Sm) Have?


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


●Number of neutrons=150-62=88

In another way,

●Mass number=Protons +Neutrons

Or,150=62+Neutrons



Or,150-62=Neutrons



Therefore,
Neutrons=88




Therefore,the number of neutrons in samarium (Sm) is 88 here for this isotope.Remember that neutrons are present in the nucleous of samarium (Sm) and it's charge is zero.



●Number of protons in samarium (Sm) is 62.Protons are present in the nucleus of samarium (Sm) .











● Number of electrons in samarium (Sm) is 62.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of samarium (Sm).


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