Answered

Westonci.ca offers fast, accurate answers to your questions. Join our community and get the insights you need now. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

An atom of aluminum (Al) has an atomic number of 13 and a mass number of 27. How many neutrons does it have?

A. 13
B. 14
C. 27
D. 40

Sagot :

GinnyAnswer
To determine the number of neutrons in an atom, you use the following information:

1. Atomic Number (Z): This is the number of protons in the atom. For aluminum (Al), the atomic number is 13.

2. Mass Number (A): This is the total number of protons and neutrons in the atom. For aluminum, the mass number is 27.

The number of neutrons (N) in the atom can be found using the formula:
[tex]\[ \text{Number of neutrons} = \text{Mass number} - \text{Atomic number} \][/tex]

Given:
- Atomic number (Z) = 13
- Mass number (A) = 27

Using the formula:
[tex]\[ \text{Number of neutrons} = 27 - 13 = 14 \][/tex]

Therefore, the aluminum atom has 14 neutrons.

The correct answer is:
B. 14
We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.