【3 Steps】How Many Neutrons Does Krypton(Kr) Have?||Number of Neutrons in Krypton(Kr)
How Many Neutrons Does Krypton(Kr) Have?
Descriptio
To find out the number of neutrons for krypton (Kr) ,we have to have knowledge about atomic number,atomic mass,mass number of krypton (Kr)
.Click picture to see clearly.
Step-1:
●The atomic number of krypton (Kr) is the number of protons in krypton (Kr) 's nucleus.
●The atomic mass of krypton (Kr) is the average number of protons plus neutrons of all the isotopes of krypton (Kr) .
●The masss number of krypton (Kr)is the number of protons plus neutrons of a specific isotope of krypton (Kr) .
Step-2:
We need to convert atomic mass of krypton (Kr) to mass number of krypton (Kr) by rounding if necessary (In case of fraction) .
From periodic table,
●Atomic number of krypton (Kr) is 36.
●Atomic mass of krypton (Kr) is 83.80
●To find out mass number,we need to round 83.80 to a whole number.So,by rounding,we are getting mass number of krypton (Kr).The mass number of krypton (Kr) is 84.
Step-3:
By the difference between mass number and atomic number of krypton (Kr),we get the number of neutrons in krypton (Kr) .
●Number of neutrons=84-36=48
In another way,
●Mass number=Protons +Neutrons
Or,84 =36+Neutrons
Or,84-36=Neutrons
Therefore,
Neutrons=48
Therefore,the number of neutrons in krypton (Kr) is 48 here for this isotope.Remember that neutrons are present in the nucleous of krypton (Kr)and it's charge is zero.
●Number of protons in krypton (Kr) is 36.Protons are present in the nucleus of krypton (Kr).
● Number of electrons in krypton (Kr) is 36.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of krypton (Kr) .
Continue
.Click picture to see clearly.
Step-1:
●The atomic number of krypton (Kr) is the number of protons in krypton (Kr) 's nucleus.
●The atomic mass of krypton (Kr) is the average number of protons plus neutrons of all the isotopes of krypton (Kr) .
●The masss number of krypton (Kr)is the number of protons plus neutrons of a specific isotope of krypton (Kr) .
Step-2:
We need to convert atomic mass of krypton (Kr) to mass number of krypton (Kr) by rounding if necessary (In case of fraction) .
From periodic table,
●Atomic number of krypton (Kr) is 36.
●Atomic mass of krypton (Kr) is 83.80
●To find out mass number,we need to round 83.80 to a whole number.So,by rounding,we are getting mass number of krypton (Kr).The mass number of krypton (Kr) is 84.
Step-3:
By the difference between mass number and atomic number of krypton (Kr),we get the number of neutrons in krypton (Kr) .
●Number of neutrons=84-36=48
In another way,
●Mass number=Protons +Neutrons
Or,84 =36+Neutrons
Or,84-36=Neutrons
Therefore,
Neutrons=48
Therefore,the number of neutrons in krypton (Kr) is 48 here for this isotope.Remember that neutrons are present in the nucleous of krypton (Kr)and it's charge is zero.
●Number of protons in krypton (Kr) is 36.Protons are present in the nucleus of krypton (Kr).
● Number of electrons in krypton (Kr) is 36.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of krypton (Kr) .
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