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An Isotope of Uranium is 92y238, I.E., It Has Mass Number 235 and Atomic Number 92. Find the Number of Protons and Neutrons in Its Nucleus. - Physics

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Question

An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Find the number of protons and neutrons in its nucleus.

Short Note

Solution

Atomic mass = Number of protons + Number of neutrons

or 235 = 92 + Number of neutrons

∴ Number of neutrons = 235 - 92 = 143 

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Chapter 11: Thermionic Emission and Radioactivity - Long Numericals

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ICSE Physics [English] Class 10
Chapter 11 Thermionic Emission and Radioactivity
Long Numericals | Q 3.2
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