Charge on $\alpha $ - particle is

  • A

    $4.8 \times {10^{ - 19}}\,C$

  • B

    $1.6 \times {10^{ - 19}}\,C$

  • C

    $3.2 \times {10^{ - 19}}\,C$

  • D

    $6.4 \times {10^{ - 19}}\,C$

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