How many neutrons and protons are there in the following nuclei?  $$_{6}^{13}\textrm{C}\: ,\: _{8}^{16}\textrm{O}\: ,\: _{12}^{24}\textrm{Mg}\: ,\: _{26}^{56}\textrm{Fe}\: ,\: _{38}^{88}\textrm{Sr}$$

Asked by Pragya Singh | 1 year ago |  61

##### Solution :-

$$_{6}^{13}\textrm{C}$$

Mass number of carbon-13 = 13

Atomic number of carbon = Number of protons in one carbon atom = 6

Therfore, total number of neutrons in 1 carbon atom = Mass number – Atomic number = 13 – 6 = 7

$$_{8}^{16}\textrm{O}$$

Mass number of oxygen-16 = 16

Atomic number of oxygen = Number of protons = 8

Therefore, No. neutrons = Mass number – Atomic number = 16 – 8 = 8

$$_{12}^{24}\textrm{Mg}$$

Mass number = 24

Atomic number = No. protons = 12

No. neutrons = Mass number – Atomic number = 24 – 12 = 12

$$_{26}^{56}\textrm{Fe}$$

Mass nubmer = 56

Atomic number of iron = No. protons in iron= 26

No. neutrons = Mass number – Atomic number = 56 – 26 = 30

$$_{38}^{88}\textrm{Sr}$$

Mass number = 88

Atomic number = No. protons = 38

No. neutrons = Mass number – Atomic number = 88 – 38 = 50

Answered by Abhisek | 1 year ago

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