Nishu Sharma
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Posted 4 year ago

Why do only  some elements show radioactivity and others don't show it?

2 Answer(s)
pradeep negi
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Posted 4 year ago pradeep negi

The lighter elements do not show any radioactivity because the nuclei of lighter elements contain nearly equal number of protons and neutrons. On the other hand, the nuclei of heavier elements (elements having higher atomic numbers), contain more neutrons than protons

Mitesh Sharma
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Posted 4 year ago Mitesh Sharma

The lighter elements do not show any radioactivity because the nuclei of lighter elements contain nearly equal number of protons and neutrons. On the other hand, the nuclei of heavier elements (elements having higher atomic numbers), contain more neutrons than protons