जब एक इलेक्ट्रॉन, प्रोटॉन और न्यूट्रॉन का द्रव्यमान क्रमशः me, mp और mn होता है, तो एक परमाणु ZXA का परमाणु द्रव्यमान _____ होता है।

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AAI ATC Junior Executive 21 Feb 2023 Shift 1 Official Paper
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  1. Zmn + Nme
  2. Nmp + Zme
  3. Zmp + Nmn
  4. Zmp + Nmn + Zme

Answer (Detailed Solution Below)

Option 3 : Zmp + Nmn
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Detailed Solution

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अवधारणा:

द्रव्यमान संख्या (A)= \(Z+N\)

द्रव्यमान संख्या (A)=प्रोटॉन की संख्या + न्यूट्रॉन की संख्या

\(Z\) = प्रोटॉन की संख्या

\(N\) = न्यूट्रॉन की संख्या

\(m_p\) = प्रोटॉन का द्रव्यमान

\(m_n\) = न्यूट्रॉन का द्रव्यमान

परमाणु द्रव्यमान = \(Zm_p+Nm_n\)

अतः सही उत्तर \(Zm_p+Nm_n\) है। 

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