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

1.	How many neutrons and protons are there in the following nuclei?
Answer» ¹³₆C: Atomic mass = 13 Atomic number = Number of protons = 6 Number of neutrons = (Atomic mass) – (Atomic number) = 13 – 6 = 7 ^16₈ O Atomic mass = 16 Atomic number = 8 Number of protons = 8 Number of neutrons = (Atomic mass) – (Atomic number) = 16 – 8 = 8 ^24₁₂MG Atomic mass = 24 Atomic number = Number of protons = 12 Number of neutrons = (Atomic mass) – (Atomic number) = 24 – 12 = 12 ^56 ₂₆ Fe Atomic mass = 56 Atomic number = Number of protons = 26 Number of neutrons = (Atomic mass) – (Atomic number) = 56 – 26 = 30 ⁸⁸₃₈ Sr Atomic mass = 88 Atomic number = Number of protons = 38 Number of neutrons = (Atomic mass) – (Atomic number) = 88 – 38 = 50

Answer»

¹³₆C:
Atomic mass = 13
Atomic number = Number of protons = 6
Number of neutrons = (Atomic mass) – (Atomic number)
= 13 – 6 = 7

^16₈ O

Atomic mass = 16
Atomic number = 8
Number of protons = 8
Number of neutrons = (Atomic mass) – (Atomic number)
= 16 – 8 = 8

^24₁₂MG

Atomic mass = 24
Atomic number = Number of protons = 12
Number of neutrons = (Atomic mass) – (Atomic number)
= 24 – 12 = 12

^56 ₂₆ Fe

Atomic mass = 56
Atomic number = Number of protons = 26
Number of neutrons = (Atomic mass) – (Atomic number)
= 56 – 26 = 30

⁸⁸₃₈ Sr

Atomic mass = 88
Atomic number = Number of protons = 38
Number of neutrons = (Atomic mass) – (Atomic number)
= 88 – 38 = 50

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