Mechanical Engineering Mcqs
Q The mass number of a substance represents the sum of total number of___________________?
  • A A. Protons and neutrons in an atom
  • B B. Protons and electrons in an atom
  • C C. Neutrons and electrons in an atom
  • D D. Protons and neutrons in a nucleus
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Word of the Day
27 Sep
Undesirable
not wanted or desirable because harmful, objectionable, or unpleasant.
غیر Ω…Ψ·Ω„ΩˆΨ¨ΨŒ Ω†Ψ§Ψ±ΩˆΨ§ΨŒ Ω†Ψ§Ω…Ω†Ψ§Ψ³Ψ¨

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