Question

An atom of aluminum (Al) has an atomic number of 13 and a mass number of

27. How many neutrons does it have?
OA. 27
O
O
B. 40
C. 141
D. 13

Answer 1

The number of neutrons in an atom of aluminum is 14.

Step-by-step explanation:

The number of neutrons in an atom of an element can be determined by subtracting the atomic number from the mass number. In this case, the atomic number of aluminum is 13, and the mass number is 27. Therefore, the number of neutrons in an atom of aluminum is 27 - 13 = 14.

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