Question

How many neutrons and protons are there in the given nuclei?

Answer 1

hey frnd....
we know that
no of Neutron = atomic no
and no of protons = atomic number - no of Neutron

so....
In C
No of Neutron = 13-6 = 7
No of protons = 6

In O
No of Neutron = 16-8 = 8
No of protons = 8

In Mg
No of Neutron = 24-12 = 12
No of protons = 12

In Fe
No of Neutron = 56-26 = 30
No of protons = 26

In Sr
No of Neutron = 88-38 = 50
No of protons = 38

HOPE THIS HELP YOU ☺☺☺☺

Answer 2

$\underline{\underline{\Large\mathfrak{ANSWER}}}$
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Which one is Atomic Number and Which one is mass number in a symbol ?

In Element $\mathsf{^{6} _{2} X}$

$\mathbf{2} \: \textsf{is the Atomic Number}$

And,

$\mathbf{6} \: \textsf{is the Mass Number}$

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$\underline\text{Using the Formulas,}$

$\mathsf{Atomic \: Number = Number \: of \: Protons}$

$\mathsf{Mass \: Number = Number \: of (Protons + Neutrons)}$

$\mathsf{=> Number of Neutrons =} \\ \mathsf{Mass \: Number - Number \: of \: Protons}$

We know that, Number of Protons = Atomic Number

So,

$\mathsf{Number \: of \: Neutrons} \\ \mathsf{ = Mass \: Number - Atomic \: Number}$

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$\underline{Now,}$

In $\large\mathbf{^{13} _{6} C}$

Number of Protons = 6
Number of Neutrons = 13 - 6 = 7

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In $\large\mathbf{^{16} _{8} O}$

Number of Protons = 8
Number of Neutrons = 16 - 8 = 8

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In $\large\mathbf{^{24} _{12} Mg}$

Number of Protons = 12
Number of Neutrons = 24 - 12 = 12

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In $\large\mathbf{^{56} _{26} Fe}$

Number of Protons = 26
Number of Neutrons = 56 - 26 = 30

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In $\large\mathbf{^{88} _{38} Sr}$

Number of Protons = 88
Number of Neutrons = 88 - 38 = 50

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$\huge{\mathfrak{\# \: Be \: Brainly}}$