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2. structure of atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
If $W$ is mass number and $N$ is the atomic number of an element, then
  • A
    Number of electrons $= W -N$
  • ✓
    Number of neutrons $= W -N$
  • C
    Number of protons $= W -N$
  • D
    Number of neutrons $= N$
✓

Answer

Correct option: B.
Number of neutrons $= W -N$
b
No. of neutrons $=$ mass number $-$ no. of protons

No of neutrons $= W - N$.

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