【 】How Many Neutrons Does Argon Have||Number of Neutrons in Argon

Solution:

Argon has 22 neutrons for this isotope.

Explanation:

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

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

                    Step-1:


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


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


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

                    Step-2:

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

From periodic table,


  ●Atomic number of argon  is 18 .

●Atomic mass of  argon is 39.95

●To find out mass number,we need to round 39.95 to a whole number.So,by rounding,we are getting mass number  of argon.The mass number of argon is 40.




                    Step-3:

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


●Number of neutrons=40-18=22
Therefore,the number of neutrons in argon is 22 here for this isotope.Remember that neutrons are present in the nucleous of argon and it's charge is zero.

●Number of protons in argon is 18.Protons are present in the nucleus of argon.



● Number of electrons in argon is 18.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of argon.


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