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Zorluk: OrtaAtomic Structure and Periodic Table

A stable isotope of silicon has 1414 protons and a total mass number of 3030. How many neutrons are located inside its nucleus?

  1. A
    14
  2. B
    44
  3. 16Cevap
  4. D
    30

Cevap

The nucleus contains 16 neutrons.
The number of neutrons in an atom is found by subtracting the atomic number (number of protons) from the mass number. For this silicon isotope with a mass number of 3030 and 1414 protons, the calculation is 30−14=1630 - 14 = 16 neutrons.

Adım Adım Çözüm

1
Identify the given nuclear parameters.
Mass number (AA) = 3030; number of protons / atomic number (ZZ) = 1414.
The mass number represents the sum of protons and neutrons in the nucleus, while the number of protons defines the atomic number.
2
Apply the relationship N=A−ZN = A - Z to determine the number of neutrons.
N=30−14=16N = 30 - 14 = 16.
Subtracting the number of protons from the total mass number yields the number of neutrons.

Anahtar Kavram

Calculating Subatomic Particles in an Atom
Tahmini Süre:45s
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Konular

Atomic Structure and Periodic Table

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