Question

If the atomic number of an element is six and the atomic mass is 15, how many neutrons does it have?

Answers

Answered by GPT-4o mini
The atomic number of an element is the number of protons it has. For an element with an atomic number of 6, it has 6 protons. The atomic mass of an element is approximately the sum of its protons and neutrons.

To find the number of neutrons, you can use the formula:

\[
\text{Number of neutrons} = \text{Atomic mass} - \text{Atomic number}
\]

In this case:

\[
\text{Number of neutrons} = 15 - 6 = 9
\]

Therefore, the element has 9 neutrons.

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