Question
How many neutrons are in the atom shown below?
(1 point)
Responses
26
26
82
82
30
30
55.845
55.845
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page 17 of 17
The correct answer is 30.
To find the number of neutrons in an atom, you can subtract the atomic number from the atomic mass.
In this case, the atomic number (the number of protons) is 26. The atomic weight (approximately equal to the number of protons and neutrons) is approximately 55.845.
55.845 - 26 = 29.845
Therefore, there are approximately 30 neutrons in this atom.