Respuesta :
The number of neutrons present in the non-metallic elements of the periodic table can be calculated by the formula:
No. of neutrons = Atomic mass - Atomic number
Every atom's nucleus has a neutron, with the exception of hydrogen, which does not. The fact that the particle has no electrical charge—it is neutral—gives it its name.
The elements that gain electrons to generate negative ions are known as non-metals. In their outermost shell, non-metals often have 4, 5, 6, or 7 electrons.
Example : Carbon, Nitrogen, Oxygen , Phosphorous etc.
Let's take an example of non metallic element like Phosphorous
Atomic number = 15
Atomic Mass = 31 u
So, according to the formula
No. of neutrons = 31 - 15 = 16
Hence, the number of neutrons present in the non-metallic elements of the periodic table can be calculated by the formula:
No. of neutrons = Atomic mass - Atomic number
Learn more about neutrons here https://brainly.com/question/26226232
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