【3 Steps】How Many Neutrons Does Chromium Have?||Number of Neutrons in Chromium

How Many Neutrons Does Chromium Have?

Hello, chemistry lover! today we are going to help you to find out  how many neutrons chromium  have in just 3 steps.

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

                    Step-1:


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


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


●The masss number of chromium is the number of protons plus neutrons of a specific isotope of chromium.

                    Step-2:

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

From periodic table,


  ●Atomic number of chromium  is 24 .

●Atomic mass of  chromium is 52.00

●To find out mass number,we need to round 52.00 to a whole number.So,by rounding,we are getting mass number  of chromium.The mass number of chromium is 52.




                    Step-3:

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


●Number of neutrons=52-24=28

In another way,

●Mass number=Protons +Neutrons

Or,52 =24 +Neutrons

Or,52-24=Neutrons

Therefore,
Neutrons=28




Therefore,the number of neutrons in chromium is 28 here for this isotope.Remember that neutrons are present in the nucleous of chromium and it's charge is zero.

●Number of protons in chromium is 24.Protons are present in the nucleus of chromium.



● Number of electrons in chromium is 24.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of chromium.


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