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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
The ratio of specific charge of a proton and an $\alpha $-particle is
  • ✓
    $2:1$
  • B
    $1:2$
  • C
    $1:4$
  • D
    $1:1$
✓

Answer

Correct option: A.
$2:1$
a
(a) Charge on proton $ = + 1$ unit, charge on $\alpha$ particle $= + 2$  units, $2 : 1.$

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