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  • Number of neutrons in 92X238 is
Multiple choice

Number of neutrons in 92X238 is

  1. 144

  2. 148

  3. 242

  4. 146

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

For X-238 with atomic number 92, neutrons = mass number - atomic number = 238 - 92 = 146. This element is uranium (U-238). Option A (144) would give mass 236, B (148) gives 240, and C (242) is the mass number itself.

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