Multiple Choice
Which subatomic particles contribute to an atom's mass number but not its atomic number?
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2. Atoms & Elements
Isotopes
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How many neutrons are present in the most abundant isotope of oxygen?
A
6
B
10
C
8
D
16
Verified step by step guidance1
Identify the atomic number of oxygen, which is the number of protons in the nucleus. For oxygen, the atomic number is 8.
Determine the mass number of the most abundant isotope of oxygen. The most common isotope is oxygen-16, where 16 represents the mass number (protons + neutrons).
Use the formula to find the number of neutrons: \(\text{Number of neutrons} = \text{Mass number} - \text{Atomic number}\).
Substitute the values for oxygen-16: \(\text{Number of neutrons} = 16 - 8\).
Calculate the difference to find the number of neutrons in the most abundant isotope of oxygen.
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