객관식
Which statement correctly describes the number of neutrons in a normal hydrogen atom (protium)?
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2. Atoms & Elements
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Multiple Choice
How many neutrons are present in the nucleus of a germanium (Ge) atom with a mass number of 73?
A
32
B
34
C
73
D
41
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검증된 단계별 안내1
Identify the atomic number (Z) of germanium (Ge), which is the number of protons in the nucleus. For Ge, Z = 32.
Recall that the mass number (A) is the total number of protons and neutrons in the nucleus. Here, A = 73.
Use the relationship between mass number, protons, and neutrons: \(\text{Number of neutrons} = A - Z\).
Substitute the known values into the formula: \(\text{Number of neutrons} = 73 - 32\).
Calculate the difference to find the number of neutrons in the germanium atom.
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