【】How Many Neutrons Does Beryllium Have?|| Number of Neutrons in Beryllium

Answer:
There are five neutrons in beryllium  for this isotope.
How Many Neutrons Does Beryllium Have?



Explanation:

Hello, chemistry lover! today we are going to find out  how many neutrons beryllium has in just 3 steps.



To find out the number of neutrons  for beryllium,we have to have knowledge about atomic number,atomic mass,mass number of beryllium.



                    Step-1:


●The atomic number of beryllium is the number of protons in beryllium's nucleus.

●The atomic mass of beryllium is the average number of  protons plus neutrons of all the isotopes of beryllium.


●The Masss number of beryllium is the number of protons plus neutrons of a specific isotope of beryllium.



How Many Neutrons Does beryllium Have?




                    Step-2:

We need to convert atomic mass of beryllium to mass number of  beryllium by rounding if necessary (In case of fraction) .
How Many Neutrons Does Beryllium Have?




From periodic table,


  ●Atomic number of beryllium  is 4(four).

●Atomic mass of  beryllium is 9.01

●To find out mass number,we need to round 9.01 to a whole number.So,by rounding,we are getting mass number  of beryllium.The mass number of beryllium is 9.




                    Step-3:
How Many Neutrons Does beryllium Have?

By the difference between mass number and atomic number of beryllium,we get the number of neutrons in beryllium.


●Number of neutrons=9-4=5
Therefore,the number of neutrons in beryllium is 5 here for this isotope.

● Number of electrons in beryllium is 4.Remember that number of electron equals to proton in a neutral atom.

●Number of protons in beryllium is 4.

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