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In Chemistry / High School | 2014-11-14

What contains 15 neutrons and 13 protons?

Asked by Tyler16

Answer (2)

An isotope of Aluminium, a 'normal' Al atom would have a proton number of 13 (as this does not change in isotopes of the same element) but only 14 neutrons. This isotope of Al has 1 extra neutron than regular Al.

Answered by BeckaH | 2024-06-10

An atom with 15 neutrons and 13 protons is Aluminum-28 ( 28 A l ). Aluminum has an atomic number of 13, which means it has 13 protons, and adding the 15 neutrons gives the mass number of 28. This isotope is important in understanding the variations within elements and their properties.
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Answered by BeckaH | 2025-04-27

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