【 】How Many Neutrons Does Bromine (Br) Have?||Number of Neutrons in Bromine
How Many Neutrons Does Bromine (Br) Have?
Answer:
Bromine has 45 neutrons for this isotope.
Explanation:
Hello, chemistry lover! today we are going to help you to find out how many neutrons bromine (Br) have in just 3 steps.
To find out the number of neutrons for bromine (Br) ,we have to have knowledge about atomic number,atomic mass,mass number of bromine (Br)
.Click picture to see clearly.
Step-1:
●The atomic number of bromine (Br) is the number of protons in bromine (Br) 's nucleus.
●The atomic mass of bromine (Br) is the average number of protons plus neutrons of all the isotopes of bromine (Br) .
●The masss number of bromine (Br) is the number of protons plus neutrons of a specific isotope of bromine (Br) ) .
Step-2:
We need to convert atomic mass of bromine (Br) to mass number of bromine (Br) by rounding if necessary (In case of fraction) .
From periodic table,
●Atomic number of bromine (Br) is 35.
●Atomic mass of bromine (Br) is 79.90
●To find out mass number,we need to round 79.90 to a whole number.So,by rounding,we are getting mass number of bromine (Br) .The mass number of bromine (Br) is 80.
Step-3:
By the difference between mass number and atomic number of bromine (Br) ,we get the number of neutrons in bromine (Br) .
●Number of neutrons=80-35=45
In another way,
●Mass number=Protons +Neutrons
Or,80 =35 +Neutrons
Or,80-35=Neutrons
Therefore,
Neutrons=45
Therefore,the number of neutrons in bromine (Br) is 45 here for this isotope.Remember that neutrons are present in the nucleous of bromine (Br) and it's charge is zero.
●Number of protons in bromine (Br) is 35.Protons are present in the nucleus of bromine (Br).
● Number of electrons in bromine (Br) is 35.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of bromine (Br) .
Continue
Hello, chemistry lover! today we are going to help you to find out how many neutrons bromine (Br) have in just 3 steps.
.Click picture to see clearly.
Step-1:
●The atomic number of bromine (Br) is the number of protons in bromine (Br) 's nucleus.
●The atomic mass of bromine (Br) is the average number of protons plus neutrons of all the isotopes of bromine (Br) .
●The masss number of bromine (Br) is the number of protons plus neutrons of a specific isotope of bromine (Br) ) .
Step-2:
We need to convert atomic mass of bromine (Br) to mass number of bromine (Br) by rounding if necessary (In case of fraction) .
From periodic table,
●Atomic number of bromine (Br) is 35.
●Atomic mass of bromine (Br) is 79.90
●To find out mass number,we need to round 79.90 to a whole number.So,by rounding,we are getting mass number of bromine (Br) .The mass number of bromine (Br) is 80.
Step-3:
By the difference between mass number and atomic number of bromine (Br) ,we get the number of neutrons in bromine (Br) .
●Number of neutrons=80-35=45
In another way,
●Mass number=Protons +Neutrons
Or,80 =35 +Neutrons
Or,80-35=Neutrons
Therefore,
Neutrons=45
Therefore,the number of neutrons in bromine (Br) is 45 here for this isotope.Remember that neutrons are present in the nucleous of bromine (Br) and it's charge is zero.
●Number of protons in bromine (Br) is 35.Protons are present in the nucleus of bromine (Br).
● Number of electrons in bromine (Br) is 35.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of bromine (Br) .
Continue
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