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# How Many Neutrons and Protons Are There in the Following Nuclei? - CBSE (Science) Class 11 - Chemistry

ConceptSubatomic Particles Discovery of Protons and Neutrons

#### Question

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

""_6^13C, ""_8^16O, ""_12^24Mg, ""_26^56Fe, ""_38^88Sr

#### Solution

""_6^13C

Atomic mass = 13

Atomic number = Number of protons = 6

Number of neutrons = (Atomic mass) – (Atomic number)

= 13 – 6 = 7

""_8^16O :-

Atomic mass = 16

Atomic number = 8

Number of protons = 8

Number of neutrons = (Atomic mass) – (Atomic number)

= 16 – 8 = 8

""_12^24Mg :-

Atomic mass = 24

Atomic number = Number of protons = 12

Number of neutrons = (Atomic mass) – (Atomic number)

= 24 – 12 = 12

""_26^56Fe :-

Atomic mass = 56

Atomic number = Number of protons = 26

Number of neutrons = (Atomic mass) – (Atomic number)

= 56 – 26 = 30

""_38^88Sr :-

Atomic mass = 88

Atomic number = Number of protons = 38

Number of neutrons = (Atomic mass) – (Atomic number)

= 88 – 38 = 50

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Solution How Many Neutrons and Protons Are There in the Following Nuclei? Concept: Subatomic Particles - Discovery of Protons and Neutrons.
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