Multiple Choice
Vanadium has an atomic number of 23. How many neutrons are present in the most abundant isotope of vanadium?
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Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many neutrons are present in an atom of lithium-7?
A
0
B
7
C
3
D
4
Verified step by step guidance1
Identify the atomic number (Z) of lithium, which is the number of protons in the nucleus. For lithium, Z = 3.
Recognize that the number 7 in lithium-7 represents the mass number (A), which is the total number of protons and neutrons in the nucleus.
Use the formula to find the number of neutrons (N): \(N = A - Z\).
Substitute the known values into the formula: \(N = 7 - 3\).
Calculate the difference to find the number of neutrons in lithium-7.
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