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Which of the following statements is true about a neutral atom of silicon?
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2. Atoms & Elements
The Atom
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Nickel has an atomic number of 28 and a mass number of 59. How many neutrons does a typical atom of nickel-59 contain?
A
59
B
28
C
31
D
87
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Identify the atomic number (Z) of nickel, which is given as 28. The atomic number represents the number of protons in the nucleus of the atom.
Identify the mass number (A) of the isotope, which is given as 59. The mass number is the total number of protons and neutrons in the nucleus.
Recall the relationship between mass number, protons, and neutrons: \(A = Z + N\), where \(N\) is the number of neutrons.
Rearrange the formula to solve for the number of neutrons: \(N = A - Z\).
Substitute the known values into the equation: \(N = 59 - 28\) to find the number of neutrons in nickel-59.
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